/ Thesaurus I: Synonyms for Letter I A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Verb ice ice over ice skate ice up idealise idealize ideate identify idle idolise idolize ignite ignore ill-treat ill-use illegalise illegalize illume illuminate illumine illustrate image imagine imbed imbibe imbricate imbrue imbue imitate immaterialise immaterialize immerse immigrate immingle immix immobilise immobilize immolate immortalise immortalize immunise immunize immure impact impair impale impanel impart impeach impede impel impend imperil impersonate impinge impinge on implant implement implicate implode implore imply import importune impose impound impoverish imprecate impregnate impress imprint imprison improve improvise improvize impugn impulse-buy impute inactivate inaugurate incandesce incapacitate incarcerate incarnadine incarnate incase incense inch incinerate incise incite incline inclose include incommode inconvenience inconvenience oneself incorporate increase incriminate incrust incubate inculcate inculpate incur incurvate indemnify indent indenture index indicate indict indispose indite individualise individualize individuate indoctrinate indorse induce induct indue indulge indurate industrialise industrialize indwell inebriate infatuate infect infer infest infiltrate infix inflame inflate inflect inflict influence inform infract infringe infuriate infuscate infuse ingeminate ingest ingraft ingrain ingratiate ingurgitate inhabit inhale inhere inhere in inherit inhibit inhume initial initialise initialize initiate inject injure ink inlay inmarry innervate innovate inoculate inosculate input inquire inscribe inseminate insert inset insinuate insist insolate inspan inspect inspire inspirit inspissate instal install instance instantiate instigate instil instill institute institutionalise institutionalize instruct instrument instrumentate insufflate insulate insult insure integrate intend intensify inter interact interbreed intercalate intercede intercept interchange intercommunicate interconnect interdepend interdict interest interfere interiorise interiorize interject interlace interlard interleave interlink interlock interlope interlude intermarry intermediate intermingle intermit intermix intern internalise internalize internationalise internationalize interpellate interpenetrate interpolate interpose interpret interrelate interrogate interrupt intersect intersperse interstratify intertwine intervene interview interweave intimate intimidate intonate intone intoxicate intransitivise intransitivize intrench intrigue introduce introject intromit introspect introvert intrude intrude on intrust intubate intuit intumesce intussuscept inunct inundate inure invade invaginate invalid invalidate inveigh inveigle invent inventory invert invest investigate invigilate invigorate invite invite out invoice invoke involve inweave iodinate iodise iodize ionate ionise ionize iridesce irk iron iron out irradiate irrigate irritate irrupt islamise islamize island hop isolate isomerise isomerize issue issue forth italicise italicize itch itemise itemize iterate itinerate Adjective i iambic iatrogenic iberian ibsenian ic ice-clogged ice-cold ice-free icebound icelandic icelandic-speaking ichorous icky iconic iconoclastic icosahedral ictal icteric icterogenic ictic icy ideal idealised idealistic idealized ideational idempotent identical identifiable identified ideographic ideologic ideological idiographic idiomatic idiomatical idiopathic idiosyncratic idiotic idle idolatrous idolised idolized idyllic iffy igneous ignescent ignitable ignited ignitible ignoble ignominious ignorant ignored ii iii il iliac ill ill-advised ill-affected ill-bred ill-chosen ill-conceived ill-considered ill-defined ill-dressed ill-equipped ill-famed ill-fated ill-favored ill-favoured ill-fed ill-fitting ill-formed ill-gotten ill-humored ill-humoured ill-judged ill-mannered ill-natured ill-omened ill-proportioned ill-scented ill-shapen ill-smelling ill-sorted ill-starred ill-tempered ill-timed ill-treated ill-used ill at ease illative illegal illegible illegitimate illiberal illicit illimitable illiterate illogical illuminated illuminating illusional illusionary illusive illusory illustrative illustrious ilx ilxx ilxxx imaginable imaginary imaginative imbalanced imbecile imbecilic imbricate imbricated imitation imitative immaculate immanent immaterial immature immeasurable immediate immemorial immense immensurable imminent immiscible immobile immoderate immodest immoral immortal immotile immovable immoveable immune immunised immunized immunochemical immunocompetent immunocompromised immunodeficient immunogenic immunologic immunological immunosuppressed immunosuppressive immunotherapeutic immutable impacted impaired impalpable imparipinnate impartial impassable impassioned impassive impatient impeccable impeccant impecunious impeded impeding impelled impellent impelling impendent impending impenetrable impenitent imperative imperceptible imperfect imperfectible imperforate imperial imperialist imperialistic imperious imperishable impermanent impermeable impermissible impersonal impertinent imperturbable imperviable impervious impetiginous impetuous impious impish implacable implanted implausible implemental implemented implicated implicational implicative implicit implicit in implike imploring impolite impolitic imponderable important important-looking imported importunate imposed imposing impossible impotent impoverished impracticable impractical imprecise impregnable impressed impressible impressionable impressionist impressionistic impressive imprisoned improbable impromptu improper improvable improved improvident improving improvised imprudent impudent impugnable impuissant impulsive impure imputable imputrescible in in-between in-bounds in-chief in-person in-situ in-your-face in a bad way in advance in agreement in condition in demand in dishabille in effect in evidence in for in force in gear in good taste in height in her right mind in high spirits in his right mind in league in line in love in one's birthday suit in operation in order in play in question in series in sight in small stages in stock in store in straitened circumstances in style in the altogether in the buff in the flesh in the lead in the public eye in the raw in their right minds in use in vitro in vivo in vogue in writing in your birthday suit inaccessible inaccurate inactive inadequate inadmissible inadvertent inadvisable inaesthetic inalienable inalterable inane inanimate inapplicable inapposite inappreciable inappropriate inapt inarguable inarticulate inartistic inattentive inaudible inaugural inauspicious inauthentic inboard inborn inbound inbred inbuilt incalculable incan incandescent incapable incapacitated incapacitating incarnate incased incautious incendiary incensed incertain incessant incestuous inchoate inchoative incident incidental incipient incised incisive incitive inclement inclined included inclusive incognito incognizable incognizant incognoscible incoherent incombustible incoming incommensurable incommensurate incommodious incommunicado incommunicative incommutable incomparable incompatible incompetent incomplete incomprehensible incomprehensive incompressible incomputable inconceivable inconclusive incongruent incongruous inconsequent inconsequential inconsiderable inconsiderate inconsistent inconsolable inconspicuous inconstant incontestable incontestible incontinent incontrovertible inconvenient inconvertible incorporate incorporated incorporative incorporeal incorrect incorrigible incorrupt incorruptible increased increasing increasing monotonic incredible incredulous incremental incriminating incriminatory inculpable inculpative inculpatory incumbent incumbent on incurable incurious incursive incurvate incurved indebted indecent indecipherable indecisive indecorous indefatigable indefeasible indefensible indefinable indefinite indehiscent indelible indelicate indentured independent indescribable indestructible indeterminable indeterminate indexical indexless indian indicative indicatory indictable indie indifferent indigenous indigent indigestible indignant indigo indirect indiscernible indiscreet indiscrete indiscriminate indiscriminating indispensable indisposed indisputable indissoluble indistinct indistinguishable individual individualised individualist individualistic individualized indivisible indivisible by indo-aryan indo-european indo-germanic indocile indolent indomitable indonesian indoor indrawn indubitable induced inducive inductive indulgent indurate indusial industrial industrial-strength industrialised industrialized industrious indwelling inebriated inedible ineffable ineffective ineffectual inefficacious inefficient inelaborate inelastic inelegant ineligible ineluctable inept inequitable ineradicable inerrable inerrant inert inertial inescapable inessential inestimable inevitable inexact inexcusable inexhaustible inexorable inexpedient inexpensive inexperienced inexperient inexpert inexpiable inexplicable inexplicit inexpressible inexpressive inexpugnable inexpungeable inexpungible inextensible inexterminable inextinguishable inextirpable inextricable infallible infamous infantile infatuated infeasible infected infectious infective infelicitous inferential inferior infernal infertile infinite infinitesimal infinitival infirm inflamed inflammable inflammatory inflatable inflated inflationary inflected inflectional inflexible inflowing influent influential informal informational informative informatory informed infra dig infrahuman inframaxillary infrangible infrared infrasonic infrequent infuriated infuriating ingenious ingenuous inglorious ingrained ingratiating ingratiatory ingrowing ingrown inguinal inhabitable inhabited inhalant inharmonic inharmonious inherent inheritable inherited inheriting inhibited inhibitory inhomogeneous inhospitable inhuman inhumane inhumed inimical inimitable iniquitous initial initiative initiatory injectable injudicious injured injurious ink-black ink-jet inky inky-black inlaid inland inmost innate inner innermost innocent innocuous innovational innovative innoxious innumerable innumerate innumerous inodorous inoffensive inoperable inoperative inopportune inordinate inorganic inpouring inquiring inquisitive inquisitorial inquisitory insalubrious insane insanitary insatiable insatiate inscribed inscriptive inscrutable insectan insecticidal insectivorous insecure insensate insensible insensitive insentient inseparable inshore inside inside-out insidious insightful insignificant insincere insinuating insipid insistent insolent insoluble insolvable insolvent insomniac insouciant inspirational inspiratory inspired inspiring inspiriting inst instant instantaneous instigative instinct instinctive institutional institutionalised institutionalized instructional instructive instrumental insubordinate insubstantial insufferable insufficient insular insulting insuperable insupportable insurable insured insurgent insurmountable insurrectional insurrectionary insusceptible intact intangible integral integrated integrative integumental integumentary intellectual intelligent intelligible intemperate intended intense intensified intensifying intensional intensive intent intentional interactional interactive interbred intercalary intercellular interchangeable interchurch intercollegiate interconnected intercontinental intercostal intercrossed interdenominational interdepartmental interdependent interdisciplinary interest-bearing interested interesting interfacial interfaith interfering intergalactic interim interior interlaced interlacing interlineal interlinear interlinking interlobular interlocking interlocutory intermediate intermeshed interminable intermittent intermolecular intermural internal international internationalist internationalistic internecine interoceptive interoperable interpersonal interplanetary interpretable interpretative interpreted interpretive interracial interred interrelated interrogative interrogatory interrupted interscholastic interschool intersectant intersecting intersexual interspecies interspecific interstate interstellar interstitial intertidal intertribal intervening intervertebral interwoven intestate intestinal intimal intimate intimidated intimidating intolerable intolerant intoned intoxicant intoxicated intoxicating intra vires intracellular intracerebral intracranial intractable intracutaneous intradepartmental intradermal intradermic intragroup intralinguistic intralobular intramolecular intramural intramuscular intransigent intransitive intrapulmonary intrasentential intraspecies intraspecific intrastate intrauterine intravenous intraventricular intrepid intricate intriguing intrinsic intrinsical introductory introjected introspective introuvable introversive introverted introvertish introvertive intruding intrusive intuitionist intuitive intumescent inundated inured inutile invading invalid invalidated invalidating invaluable invariable invariant invasive inventive inverse invertebrate inverted invertible investigative investigatory inveterate invidious invigorated invigorating invincible inviolable inviolate invisible invitational invitatory inviting involucrate involuntary involute involved invulnerable inward inward-developing inward-moving inwrought iodinated iodinating iodised iodized ionian ionic ionised ionized ipsilateral iraki iranian iraqi irascible irate ireful irenic iridaceous iridescent iridic irish iritic irksome iron iron-gray iron-grey ironclad ironed ironic ironical ironlike ironshod irrational irreclaimable irreconcilable irrecoverable irredeemable irreducible irrefutable irregular irrelevant irreligious irremediable irremovable irreparable irreplaceable irrepressible irreproachable irreproducible irresistible irresolute irresponsible irretrievable irreverent irreversible irrevocable irrevokable irritable irritated irritating irritative irruptive ischaemic ischemic isentropic islamic ismaili isobilateral isochronal isochronous isoclinal isoclinic isocyclic isogonic isolable isolated isolating isolationist isolationistic isomeric isometric isometrical isomorphic isomorphous isopteran isosceles isosmotic isothermal isothermic isotonic isotopic isotropic isotropous israeli isthmian italian italian-speaking italic itchy item-by-item iterative itinerant itsy-bitsy itty-bitty iv ivied ivy-covered ix ixc ixl Adverb i.e. ib. ibid. ibidem icily id est ideally identically identifiably ideographically ideologically idiomatically idiotically idly idolatrously idyllically ie if not ignobly ignominiously ignorantly ill illegally illegibly illegitimately illiberally illicitly illogically illustriously imaginatively immaculately immaturely immeasurably immediately immensely imminently immoderately immodestly immorally immovably immunologically immutably impalpably impartially impassively impatiently impeccably impenitently imperatively imperceptibly imperfectly imperially imperiously impermissibly impersonally impertinently impetuously impiously impishly implausibly implicitly imploringly impolitely importantly importunately imposingly impossibly impotently impracticably imprecisely impregnably impressively improbably impromptu improperly improvidently imprudently impudently impulsively in in a beastly manner in a broad way in a flash in a heartfelt way in a higher place in a low voice in a nutshell in a pig's eye in a similar way in a way in absentia in advance in all in all likelihood in all probability in an elaborate way in and of itself in any case in any event in apposition in arrears in both ears in brief in camera in case in chorus in circles in cold blood in common in concert in conclusion in darkness in detail in due course in due season in due time in earnest in effect in essence in everyone's thoughts in extremis in fact in fiscal matters in flight in front in full in full action in full swing in general in good order in good spirits in good time in great confusion in hand in haste in her own right in hiding in his own right in its own right in kind in large quantities in line in loco parentis in low spirits in name in name only in no time in on in one's own right in one case in one ear in other words in particular in passing in perpetuity in person in place in point of fact in practice in principle in private in public in reality in return in secret in short in short order in situ in so far in some manner in some way in someone's way in spades in spite of appearance in stages in stride in tandem in that in that location in that respect in the adjacent apartment in the adjacent house in the air in the bargain in the beginning in the end in the first place in the lead in the least in the long run in the lurch in the main in the meantime in the midst in the nick of time in the same breath in the south in the way in theory in this in time in toto in truth in turn in two ways in unison in utero in vacuo in vain in vitro in vivo in writing inaccessibly inaccurately inadequately inadvertently inadvisably inalienably inanely inappropriately inarticulately inattentively inaudibly inaugurally inauspiciously incautiously incessantly incestuously incidentally incisively incognito incoherently incomparably incompatibly incompetently incompletely inconceivably inconclusively incongruously inconsequentially inconsequently inconsiderately inconsistently inconspicuously incontrovertibly inconveniently incorrectly increasingly incredibly incredulously incriminatingly incurably indecently indecisively indecorously indeed indefatigably indefinitely indelibly independently indescribably indeterminably indifferently indigenously indignantly indirectly indiscreetly indiscriminately indistinctly individualistically individually indolently indoors indubitably indulgently industrially industriously ineffably ineffectively ineffectually inefficaciously inefficiently inelegantly ineloquently ineluctably ineptly inequitably inescapably inevitably inexactly inexcusably inexhaustibly inexorably inexpediently inexpensively inexpertly inexpressively inextricably infectiously infelicitously infernally infinitely inflexibly influentially informally informatively infra infrequently ingeniously ingenuously ingloriously ingratiatingly inherently inhospitably inhumanely inimitably iniquitously initially injudiciously injuriously inland innately innocently inoffensively inopportunely inordinately inorganically inquiringly inquisitively insanely insatiably inscriptively inscrutably insecticidally insecurely insensately insensibly insensitively inseparably inshore inside inside out insidiously insignificantly insincerely insinuatingly insipidly insistently insofar insolently insomuch inspirationally instantaneously instantly instead instinctively institutionally instructively insubstantially insufficiently insultingly insuperably integrally intellectually intelligently intelligibly intemperately intensely intensively intentionally intently inter alia interchangeably interdepartmental interestingly intermediately interminably intermittently internally internationally interracially interrogatively intimately into the bargain into the wind intolerably intolerantly intractably intradermally intramuscularly intransitively intravenously intrepidly intricately intrinsically intuitively invariably inventively inversely inveterate invidiously invincibly invisibly invitingly involuntarily inward inwardly inwards ipso facto irately ironically irrationally irregardless irregularly irrelevantly irreparably irreproachably irresistibly irresolutely irrespective irresponsibly irretrievably irreverently irreversibly irrevocably irritably irritatingly isotropically item Noun i i-beam i. a. richards i. f. stone i. m. pei i.d. i.e.d. i.q. i.w.w. i chronicles i corinthians i esdra i john i kings i maccabees i peter i samuel i thessalonians i timothy ia iaa iaea iago iamb iambic iambus ian douglas smith ian fleming ian lancaster fleming ian smith ian wilmut ianfu iapetus ibadan ibda-c iberia iberian iberian peninsula iberis ibero-mesornis ibert ibex ibis ibis ibis ibizan hound ibizan podenco ibn-roshd ibn-sina ibn al-haytham ibn talal hussein ibolium privet ibota privet ibrahim ibrd ibsen ibuprofen ic icaco icao icarus icbm icc ice ice-cream bean ice-cream cake ice-cream cone ice-cream float ice-cream soda ice-cream sundae ice-hockey player ice-hockey rink ice-skater ice-skating rink ice-wagon ice age ice ax ice axe ice bag ice bear ice cap ice chest ice coffee ice cream ice crystal ice cube ice field ice floe ice fog ice hockey ice hockey rink ice lolly ice machine ice maker ice mass ice milk ice needle ice pack ice pick ice plant ice rink ice shelf ice show ice skate ice skating ice storm ice tea ice tongs ice wagon ice water ice yacht iceberg iceberg lettuce iceboat icebox icebox cake icebreaker icecap icecream iced-tea spoon iced coffee iced tea icefall icehouse iceland iceland lichen iceland moss iceland poppy iceland spar icelander icelandic icelandic krona icelandic monetary unit iceman icepick icetray ichneumon ichneumon fly ichneumonidae ichor ichthyolatry ichthyologist ichthyology ichthyosaur ichthyosauria ichthyosauridae ichthyosaurus ichthyosis ichyostega icicle icicle plant iciness icing icing sugar icing the puck icon iconoclasm iconoclast iconography iconolatry iconology iconoscope icosahedron icsh ictalurus ictalurus punctatus icteria icteria virens icteridae icterus icterus galbula icterus galbula bullockii icterus galbula galbula icterus neonatorum icterus spurius ictiobus ictiobus niger ictodosaur ictodosauria ictonyx ictonyx frenata ictonyx striata ictus icu id id al-adha id al-fitr ida ida m. tarbell ida minerva tarbell ida tarbell idaho idaho falls idahoan iddm idea ideal ideal gas ideal solid idealisation idealism idealist ideality idealization idealogue ideation identical twin identicalness identification identification number identification particle identifier identikit identikit picture identity identity card identity crisis identity element identity matrix identity operator identity theft identity verification ideogram ideograph ideography ideological barrier ideologist ideologue ideology ides idesia idesia polycarpa idf idiocy idiolatry idiolect idiom idiom neutral idiomatic expression idiopathic disease idiopathic disorder idiopathic hemochromatosis idiopathic thrombocytopenic purpura idiopathy idiosyncrasy idiot idiot box idiot light idiot savant iditarod iditarod trail iditarod trail dog sled race idle idle pulley idle talk idle wheel idle words idleness idler idler pulley idling ido idocrase idol idol worship idol worshiper idolater idolatress idolatry idolisation idoliser idolization idolizer idp idria columnaris idun idyl idyll ie ied ieoh ming pei ifc ig iga igbo igd ige igg igigi iglesias igloo iglu igm ignace jan paderewski ignace paderewski ignatius ignatius of loyola igneous rock ignis fatuus igniter ignition ignition coil ignition interlock ignition key ignition lock ignition switch ignition system ignitor ignobility ignobleness ignominiousness ignominy ignoramus ignorance ignorantness ignoratio elenchi igor fyodorovich stravinsky igor ivanovich sikorsky igor sikorsky igor stravinsky igor tamm igor yevgeneevich tamm iguana iguana iguana iguania iguanid iguanid lizard iguanidae iguanodon iguanodontidae iguassu iguassu falls iguazu iguazu falls ii ii chronicles ii corinthians ii esdras ii john ii kings ii maccabees ii peter ii samuel ii thessalonians ii timothy iii iii john iis ijssel ijssel river ijsselmeer ijtihad ike ikhanaton ikon il il duce ilama ilama tree ilang-ilang ile-de-france ile-st-louis ileal artery ileitis ileocecal valve ileocolic artery ileocolic vein ileostomy iles comores iles marquises ileum ileus ilex ilex cornuta ilex decidua ilex glabra ilex paraguariensis iliac artery iliac vein iliad iliamna iliamna acerifolia iliamna remota iliamna ruvularis ilich ramirez sanchez ilich sanchez iliolumbar artery iliolumbar vein ilion ilium ilk ill ill-being ill-breeding ill-treatment ill-usage ill fame ill health ill humor ill humour ill luck ill nature ill service ill temper ill turn ill will illampu illation illecebrum illecebrum verticullatum illegal possession illegality illegibility illegitimacy illegitimate illegitimate child illegitimate enterprise illiberality illicitness illicium illicium anisatum illicium floridanum illicium verum illimani illinois illinois river illinoisan illiteracy illiterate illiterate person illness illogic illogicality illogicalness illuminance illuminant illumination illumination unit illusion illusionist illustration illustrator illustriousness illyria illyrian ilmen ilmenite ilo ilosone ilya ehrenberg ilya grigorievich ehrenberg ilya ilich metchnikov image image breaker image compression image orthicon image scanner imagery imaginary imaginary being imaginary creature imaginary number imaginary part imaginary part of a complex number imaginary place imagination imagination image imaginative comparison imaginativeness imaging imagism imago imam imamu amiri baraka imaret imaum imavate imbalance imbauba imbecile imbecility imbiber imbibing imbibition imbrication imbroglio imf imidazole imide iminazole imipramine imitation imitation leather imitative electronic deception imitator immaculate conception immaculate conception of the virgin mary immaculateness immanence immanency immanuel kant immateriality immatureness immaturity immediacy immediate allergy immediate apprehension immediate constituent immediate memory immediate payment immediateness immenseness immensity immersion immersion foot immersion heater immigrant immigrant class immigration immigration and naturalization service imminence imminency imminent abortion imminentness immobilisation immobility immobilization immobilizing immoderateness immoderation immodesty immolation immorality immortal immortality immortelle immotility immovability immovable immovable bandage immovableness immune immune carrier immune gamma globulin immune globulin immune reaction immune response immune serum globulin immune suppressant drug immune system immunisation immunity immunization immunizing agent immunoassay immunochemical assay immunochemistry immunocompetence immunodeficiency immunoelectrophoresis immunofluorescence immunogen immunogenicity immunoglobulin immunoglobulin a immunoglobulin d immunoglobulin e immunoglobulin g immunoglobulin m immunohistochemistry immunologic response immunological disorder immunologist immunology immunopathology immunosuppressant immunosuppression immunosuppressive immunosuppressive drug immunosuppressor immunotherapy immurement immutability immutableness imo imogene coca imou pine imp impact impact printer impacted fracture impacted tooth impaction impairer impairment impala impala lily impalement impalpability impartation impartiality imparting impasse impassiveness impassivity impasto impatience impatiens capensis impeachability impeachment impeccability impecuniousness impedance impediment impedimenta impeller impendence impendency impenetrability impenetrableness impenitence impenitency imperative imperative form imperative mood imperativeness imperceptibility imperfect imperfect tense imperfectibility imperfection imperfective imperfective aspect imperfectness imperforate anus imperforate hymen imperial imperial beard imperial capacity unit imperial decree imperial elephant imperial gallon imperial japanese morning glory imperial mammoth imperial moth imperialism imperialist imperiousness imperishability imperishableness imperishingness imperium impermanence impermanency impermeability impermeableness impermissibility impersonation impersonator impertinence imperturbability imperturbableness imperviousness impetigo impetuosity impetuousness impetus impiety impingement impinging impiousness impishness implant implantation implausibility implausibleness implement implementation implements of war implication implicitness implied trust implosion implosion therapy impoliteness imponderable import import barrier import credit import duty importance important person importation importee importer importing importunity imposition impossibility impossible impossible action impossibleness impost imposter impostor imposture impotence impotency impounding impoundment impoverishment impracticability impracticableness impracticality impramine hydrochloride imprecation impreciseness imprecision impregnability impregnation impresario impress impression impressionism impressionist impressive aphasia impressiveness impressment imprimatur imprint imprinting imprisonment improbability improbableness impromptu improper fraction improperness impropriety improvement improver improvidence improvisation improvised explosive device imprudence impudence impuissance impulse impulse explosive impulse turbine impulsion impulsiveness impunity impureness impurity imputation imu imuran in in-basket in-fighting in-joke in-law in-line skate in-migration in-tray in time inability inaccessibility inaccuracy inachis inachis io inaction inactivation inactiveness inactivity inadequacy inadequateness inadmissibility inadvertence inadvertency inadvisability inamorata inamorato inanimateness inanition inanity inanna inapplicability inappositeness inappropriateness inaptitude inaptness inattention inattentiveness inaudibility inaudibleness inaugural inaugural address inauguration inauguration day inauspiciousness inborn error of metabolism inborn reflex inbreeding inc inca incalescence incan incandescence incandescent lamp incantation incapability incapableness incapacity incarceration incarnation incasement incaution incautiousness incendiarism incendiary incendiary bomb incense incense cedar incense tree incense wood incentive incentive option incentive program incentive scheme incentive stock option inception incertitude incessancy incessantness incest inch incheon inchoative inchoative aspect inchon inchworm incidence incidence angle incident incidental incidental expense incidental music incienso incineration incinerator incipience incipiency incision incisiveness incisor incisura incisure incitation incitement inciter incivility inclemency inclementness inclination inclination of an orbit incline incline bench press inclined fault inclined plane inclining inclinometer inclosure inclusion inclusion body inclusion body encephalitis inclusion body myositis incognizance incoherence incoherency income income bracket income statement income tax income tax bracket income tax return incoming incommodiousness incommutability incompatibility incompetence incompetency incompetent incompetent cervix incompetent person incomplete abortion incomplete fracture incompleteness incomprehensibility incomprehension incompressibility inconceivability inconceivableness inconclusiveness inconel incongruity incongruousness inconsequence inconsiderateness inconsideration inconsistency inconspicuousness inconstancy incontinence incontinency incontrovertibility incontrovertibleness inconvenience inconvertibility incoordination incorporation incorporeality incorrectness incorruptibility incorruption incorruptness increase incredibility incredibleness incredulity increment incremental cost incrimination incrustation incubation incubation period incubator incubus inculcation inculpability inculpableness inculpation incumbency incumbent incumbrance incurability incurable incurableness incurrence incurring incursion incurvation incurvature incus indaba indapamide indebtedness indecency indecent exposure indecision indecisiveness indecorousness indecorum indefatigability indefatigableness indefinite article indefinite integral indefinite quantity indefiniteness indefinity indelible ink indelicacy indemnification indemnity indene indent indentation indention indenture independence independence day independence hall independency independent independent agency independent clause independent state of papua new guinea independent state of samoa independent variable inderal indestructibility indeterminacy indeterminacy principle indeterminateness indetermination index index case index finger index fossil index fund index number index of refraction index register indexation indexer indexing india india-rubber fig india-rubber plant india-rubber tree india ink india paper india rubber indiaman indian indian agent indian arrowroot indian banyan indian bean indian beech indian beet indian blackwood indian blanket indian breadroot indian buffalo indian button fern indian capital indian cherry indian chickweed indian chief indian chieftain indian chocolate indian cholera indian club indian cobra indian coral tree indian corn indian cress indian crocus indian currant indian elephant indian file indian giver indian grackle indian hemp indian lettuce indian lodge indian lotus indian madder indian mallow indian meal indian millet indian monetary unit indian mongoose indian mustard indian mutiny indian ocean indian paint indian paintbrush indian pea indian pink indian pipe indian plantain indian poke indian pony indian potato indian python indian race indian rat snake indian rattlebox indian red indian relish indian reservation indian rhinoceros indian rhododendron indian rhubarb indian rice indian rosewood indian rupee indian salad indian senna indian shot indian summer indian tapir indian tick fever indian tobacco indian trail indian turnip indiana indianan indianapolis indic indicant indication indicative indicative mood indicator indicator lamp indicatoridae indictability indiction indictment indie indifference indigen indigence indigene indigenous language indigenousness indigestibility indigestibleness indigestion indigirka indigirka river indignation indignity indigo indigo bird indigo broom indigo bunting indigo finch indigo plant indigo snake indigo squill indigofera indigofera anil indigofera suffruticosa indigofera tinctoria indigotin indinavir indira gandhi indira nehru gandhi indirect antonym indirect correlation indirect discourse indirect evidence indirect expression indirect fire indirect immunofluorescence indirect lighting indirect object indirect request indirect tax indirect transmission indirection indirectness indiscipline indiscreetness indiscretion indispensability indispensableness indisposition indisputability indistinctness indistinguishability indium individual individual retirement account individualisation individualism individualist individuality individualization individuation indo-aryan indo-european indo-european language indo-hittite indo-iranian indo-iranian language indochina indochinese peninsula indocin indoctrination indoleacetic acid indolebutyric acid indolence indomethacin indomitability indonesia indonesian indonesian borneo indonesian monetary unit indoor garden indorsement indorser indra indri indri brevicaudatus indri indri indriidae indris indubitability induced abortion inducement inducer inducing inductance inductance unit inductee induction induction accelerator induction coil induction heating induction of labor inductive reasoning inductor indulgence indulging indument indumentum indurated clay induration induration of the arteries indus indus civilization indus river indusium industrial air pollution industrial arts industrial bank industrial disease industrial engineering industrial enterprise industrial loan company industrial management industrial park industrial plant industrial process industrial psychology industrial revolution industrial union industrial watercourse industrial workers of the world industrialisation industrialism industrialist industrialization industriousness industry industry analyst indweller inebriant inebriate inebriation inebriety ineffectiveness ineffectuality ineffectualness inefficaciousness inefficacy inefficiency inelasticity inelegance ineligibility ineluctability ineptitude ineptness inequality inequity inerrancy inert gas inertia inertial frame inertial guidance inertial guidance system inertial mass inertial navigation inertial navigation system inertial reference frame inertness inessential inessentiality inevitability inevitable inevitable accident inevitableness inexactitude inexactness inexorability inexorableness inexpedience inexpediency inexpensiveness inexperience inexperienced person inexplicitness infallibility infamy infancy infant infant's-breath infant death infant deathrate infant feeding infant mortality infant mortality rate infant prodigy infant school infanticide infantile amaurotic idiocy infantile autism infantile fixation infantile paralysis infantilism infantry infantryman infarct infarction infatuation infeasibility infection infectious agent infectious disease infectious hepatitis infectious mononucleosis infectious polyneuritis infective agent infelicity inference inferior inferior alveolar artery inferior cerebellar artery inferior cerebral vein inferior colliculus inferior conjunction inferior court inferior epigastric vein inferior labial artery inferior labial vein inferior mesenteric artery inferior ophthalmic vein inferior planet inferior pulmonary vein inferior rectus inferior rectus muscle inferior thalamostriate vein inferior thyroid vein inferior vena cava inferior vocal cord inferior vocal fold inferiority inferiority complex infernal infernal machine infernal region inferno infertility infestation infidel infidelity infield infielder infiltration infiltrator infinite infiniteness infinitesimal infinitesimal calculus infinitive infinitude infinity infirmary infirmity infix infix notation inflaming inflammability inflammation inflammatory bowel disease inflammatory disease inflatable cushion inflater inflation inflation rate inflation therapy inflationary spiral inflator inflection inflectional ending inflectional morphology inflectional suffix inflexibility inflexibleness inflexion infliction infliximab inflorescence inflow influence influence peddler influential person influenza influx info infolding infomercial informality informant informatics information information age information bulletin information gathering information measure information processing information processing system information return information science information superhighway information system information technology information theory information warfare informational rna informed consent informer informer's privilege informercial informing infotainment infraction infraorbital artery infrared infrared emission infrared frequency infrared lamp infrared light infrared radiation infrared ray infrared spectrum infrared therapy infrastructure infrequency infrigidation infringement infringement of copyright infructescence infundibulum infuriation infusion infusoria infusorian inga inga edulis inga laurina ingathering inge ingeniousness ingenue ingenuity ingenuousness inger ingerman ingesta ingestion inglenook ingmar bergman ingot ingot iron ingraining ingrate ingratiation ingratitude ingredient ingres ingress ingrian ingrid bergman ingroup ingrown hair ingrown toenail ingrowth inguen inguinal canal inguinal hernia inh inhabitancy inhabitant inhabitation inhalant inhalation inhalation anaesthetic inhalation anesthesia inhalation anesthetic inhalation anthrax inhalation general anaesthetic inhalation general anesthetic inhalator inhaler inharmoniousness inherence inherency inherent aptitude inheritance inheritance tax inherited disease inherited disorder inherited wealth inheritor inheritress inheritrix inhibition inhibitor inhomogeneity inhospitableness inhospitality inhuman treatment inhumaneness inhumanity inhumation inigo jones inion iniquity initial initial offering initial public offering initial rhyme initialisation initialization initiate initiation initiative initiator injectant injection injector injudiciousness injun injunction injured party injuriousness injury injustice ink ink-jet printer ink bottle ink cartridge ink eraser inka inkberry inkblot inkblot test inkiness inking pad inkle inkling inkpad inkpot inkstand inkwell inky-cap mushroom inky cap inla inland bill inland passage inland revenue inland sea inlay inlet inlet manifold inmarriage inmate inn innards innate immunity innate reflex innateness inner circle inner city inner ear inner hebrides inner light inner mongolia inner product inner resource inner tube innersole innervation inning innings innkeeper innocence innocency innocense innocent innocent iii innocent viii innocent xi innocent xii innocents' day innominate artery innominate bone innominate vein innovation innovativeness innovator innsbruck innuendo innumerableness inocor inoculant inoculating inoculation inoculator inoculum inopportuneness inordinateness inorganic chemistry inorganic compound inorganic phosphate inosculation inosine inositol inpatient inpour inpouring input input data input device input file input program input routine input signal inquest inquietude inquirer inquiring inquiry inquiry agent inquisition inquisitiveness inquisitor inr inroad inrush ins insalubriousness insalubrity insane asylum insaneness insanity insanity plea inscription inscrutability insect insect bite insect powder insect repellant insect repellent insecta insecticide insectifuge insectivora insectivore insecureness insecurity insemination insensibility insensitiveness insensitivity insentience insert insertion insertional mutagenesis insessores inset inside inside caliper inside clinch inside information inside job inside loop inside passage inside track insider insider information insider trading insidiousness insight insightfulness insignia insignia of rank insignificance insincerity insinuation insipidity insipidness insistence insistency insisting insobriety insolation insole insolence insolubility insolvency insolvent insomnia insomniac insouciance inspection inspection and repair inspector inspector general inspector maigret inspectorate inspectorship inspiration inspirer inspissation instability installation installation charge installing installment installment buying installment credit installment debt installment loan installment plan installment rate instalment instance instancy instant instant coffee instant replay instantaneous sound pressure instantaneousness instantiation instar instauration instep instigant instigation instigator instillation instillator instilling instillment instilment instinct instinctive reflex institute institution instroke instruction instruction book instruction execution instruction manual instructions instructor instructorship instructress instrument instrument flying instrument landing instrument of execution instrument of punishment instrument of torture instrument panel instrumental conditioning instrumental music instrumental role instrumentalism instrumentalist instrumentality instrumentation insubordination insubstantiality insufficiency insufflation insulant insularism insularity insulating material insulating tape insulation insulator insulin insulin-dependent diabetes mellitus insulin reaction insulin shock insulin shock therapy insulin shock treatment insult insurability insurable interest insurance insurance agent insurance broker insurance claim insurance company insurance coverage insurance firm insurance policy insurance premium insurance underwriter insured insured person insurer insurgence insurgency insurgent insurrection insurrectionism insurrectionist intactness intaglio intaglio printing intake intake manifold intake valve intangibility intangible intangible asset intangibleness integer integral integral calculus integrality integrated circuit integrated data processing integrated logistic support integrating integration integrator integrity integument integumentary system intellect intellection intellectual intellectual nourishment intellectual property intellectualisation intellectualization intelligence intelligence activity intelligence agency intelligence agent intelligence analyst intelligence cell intelligence community intelligence information intelligence officer intelligence operation intelligence quotient intelligence service intelligence test intelligentsia intelligibility intelnet intemperance intemperateness intensification intensifier intension intensity intensity level intensive intensive care intensive care unit intensiveness intent intention intentionality intentness inter-group communication inter-service support inter-services intelligence inter vivos trust interaction interactive multimedia interactive multimedia system interagency support interahamwe interbank loan interbrain interbreeding intercalary year intercalation intercapitular vein intercellular substance intercept interception interceptor intercession intercessor interchange interchangeability interchangeableness intercom intercom speaker intercommunication intercommunication system intercommunion interconnectedness interconnection intercontinental ballistic missile intercostal intercostal artery intercostal muscle intercostal vein intercourse interdepartmental support interdependence interdependency interdict interdiction interdiction fire interest interest expense interest group interest rate interestedness interestingness interface interfacial surface tension interfacial tension interference interference fringe interferometer interferon intergalactic space interim interim overhaul interior interior angle interior decoration interior decorator interior department interior design interior designer interior door interior live oak interior monologue interior secretary interjection interlaken interlanguage interlayer interleaf interleukin interlingua interlingual rendition interlock interlocking interlocutor interlocutory injunction interloper interlude intermarriage intermaxillary suture intermediary intermediate intermediate host intermediate temporal artery intermediate vector boson intermediate wheatgrass intermediation intermediator interment intermezzo intermission intermittence intermittency intermittent claudication intermittent cramp intermittent tetanus intermixture intern internal-combustion engine internal angle internal auditor internal auditory artery internal auditory vein internal carotid artery internal cerebral vein internal combustion internal control internal drive internal ear internal iliac artery internal iliac vein internal jugular vein internal maxillary artery internal medicine internal organ internal representation internal respiration internal revenue internal revenue agent internal revenue service internal rhyme internal secretion internal spermatic artery internalisation internality internalization internasal suture international international affairs international ampere international association of lions clubs international atomic energy agency international bank for reconstruction and development international candle international civil aviation organization international court of justice international date line international development association international finance corporation international flight international grandmaster international intelligence agency international islamic front for jihad against jews and crusaders international jihad international labor organization international labour organization international law international law enforcement agency international logistic support international maritime organization international mile international monetary fund international morse code international nautical mile international organisation international organization international pitch international relations and security network international scale international society for krishna consciousness international system international system of units international terrorism international wanted notice international waters internationale internationalisation internationalism internationalist internationality internationalization interne internee internet internet explorer internet site internist internment internment camp internode internship internuncio interoception interoceptor interocular lens implant interoperability interparietal suture interpellation interpenetration interpersonal chemistry interphalangeal joint interphone interplanetary dust interplanetary gas interplanetary medium interplanetary space interplay interpol interpolation interposition interpretation interpretative dance interpretative dancing interpreter interpreting interpretive dance interpretive dancing interpretive program interreflection interregnum interrelatedness interrelation interrelationship interrogation interrogation point interrogative interrogative mood interrogative sentence interrogator interrogatory interrupt interrupted fern interrupter interruption intersection intersection point intersex interspersal interspersion interstate interstate commerce commission interstate highway interstellar medium interstellar space interstice interstitial cell-stimulating hormone interstitial fluid interstitial plasma cell pneumonia interstitial pneumonia interstitial tissue intertrigo interval intervenor intervention interventricular foramen intervertebral disc intervertebral disk intervertebral vein interview interviewee interviewer intestacy intestinal artery intestinal bypass intestinal colic intestinal flora intestinal flu intestinal juice intestinal obstruction intestine inti intifada intifadah intima intimacy intimate intimate apparel intimation intimidation intolerance intonation intonation pattern intoxicant intoxication intracapsular surgery intracellular fluid intracranial aneurysm intracranial cavity intractability intractableness intradermal injection intradermal test intrados intramuscular injection intranet intransigence intransigency intransitive intransitive verb intransitive verb form intransitiveness intransitivity intraocular lens intraocular pressure intrauterine device intravasation intravenous anesthetic intravenous drip intravenous feeding intravenous injection intravenous pyelogram intravenous pyelography intrenchment intrepidity intricacy intrigue intriguer intrinsic factor intrinsic fraud intro introduction introit introitus introject introjection intromission intron intropin introspection introspectiveness introversion introvert intruder intrusion intrusiveness intubation intuition intuitionism intuitive feeling intumescence intumescency intussusception inuit inula inula helenium inulin inunction inundation inutility invader invagination invalid invalidation invalidator invalidism invalidity invalidness invaluableness invar invariability invariable invariableness invariance invariant invasion invasion of iwo invasion of privacy invective invention inventiveness inventor inventory inventory-clearance sale inventory accounting inventory control inventory item inventorying inverse inverse cosecant inverse cosine inverse cotangent inverse function inverse secant inverse sine inverse tangent inversion invert soap invert sugar invertase invertebrate invertebrate foot inverted comma inverted hang inverted pleat inverter investigating investigation investigator investing investiture investment investment adviser investment advisor investment banker investment company investment firm investment funds investment letter investment trust investor investors club invidia invigilation invigilator invigoration invigorator invincibility invincible armada invirase invisibility invisible balance invisibleness invitation invite invitee invocation invoice involucre involuntariness involuntary muscle involuntary trust involution involutional depression involvement invulnerability inwardness io io moth iodic acid iodide iodin iodinated protein iodination iodine iodine-125 iodine-131 iodoamino acid iodochlorhydroxyquin iodocompound iodoform iodoprotein iodopsin iodothyronine iodotyrosine iol ion ion beam ion engine ion exchange ion pump ionesco ionia ionian ionian order ionian sea ionic ionic beam ionic bond ionic charge ionic dialect ionic medication ionic order ionisation ionization ionization chamber ionization tube ionizing radiation ionophoresis ionosphere ionospheric wave iontophoresis iontotherapy iop iosif vissarionovich dzhugashvili iota iou iowa iowa crab iowa crab apple iowan ioway ip ipecac iphigenia ipidae ipo ipod ipomoea ipomoea alba ipomoea batatas ipomoea coccinea ipomoea fastigiata ipomoea imperialis ipomoea leptophylla ipomoea nil ipomoea orizabensis ipomoea panurata ipomoea pes-caprae ipomoea purpurea ipomoea quamoclit ipomoea tricolor ipratropium bromide iproclozide ipse dixit ipsedixitism ipsus ipv iq iq test ir ira ira gershwin irak iraki iran iran-iraq war irani iranian iranian capital iranian dinar iranian language iranian monetary unit iranian rial iraq iraqi iraqi dinar iraqi intelligence service iraqi kurdistan iraqi monetary unit iraqi mukhabarat iraqi national congress irascibility ire ireland irelander irena irenaeus irene joliot-curie irenidae iresine iresine herbstii iresine reticulata iridaceae iridaceous plant iridectomy iridescence iridium iridocyclitis iridokeratitis iridoncus iridoprocne iridoprocne bicolor iridosmine iridotomy iris iris cristata iris diaphragm iris family iris filifolia iris florentina iris foetidissima iris germanica iris germanica florentina iris kaempferi iris kochii iris murdoch iris pallida iris persica iris pseudacorus iris scanning iris tingitana iris verna iris versicolor iris virginica iris xiphioides iris xiphium irish irish bull irish burgoo irish capital irish coffee irish gaelic irish gorse irish monetary unit irish moss irish national liberation army irish people irish person irish potato irish pound irish punt irish republic irish republican army irish sea irish setter irish soda bread irish stew irish strawberry irish terrier irish water spaniel irish whiskey irish whisky irish wolfhound irishman irishwoman iritis iron iron-gray iron-grey iron-storage disease iron-tree iron age iron blue iron boot iron cage iron carbide iron chancellor iron collar iron curtain iron deficiency anaemia iron deficiency anemia iron disulfide iron duke iron filing iron fist iron foundry iron heel iron horse iron lady iron lung iron maiden iron man iron manganese tungsten iron mold iron mould iron oak iron ore iron overload iron perchloride iron putty iron pyrite iron trap iron tree ironclad ironing ironing board ironist ironman ironmonger ironmonger's shop ironmongery irons ironside ironsides ironware ironweed ironwood ironwood tree ironwork ironworker ironworks irony iroquoian iroquoian language iroquois iroquois league irradiation irrational irrational hostility irrational impulse irrational motive irrational number irrationality irrawaddy irrawaddy river irreality irredenta irredentism irredentist irregular irregularity irrelevance irrelevancy irreligion irreligionist irreligiousness irreplaceableness irrepressibility irreproducibility irresistibility irresistible impulse irresistibleness irresoluteness irresolution irresponsibility irresponsibleness irreverence irreversibility irreversible process irridenta irridentism irridentist irrigation irrigation ditch irritability irritable bowel syndrome irritant irritation irruption irs irtish irtish river irtysh irtysh river irula irving irving berlin irving howe irving langmuir irvingia irvingia gabonensis isaac isaac asimov isaac bashevis singer isaac hull isaac m. singer isaac mayer wise isaac merrit singer isaac newton isaac stern isaac watts isabella isabella i isabella stewart gardner isabella the catholic isadora duncan isaiah isak dinesen isamu noguchi isarithm isatis isatis tinctoria ischaemia ischaemic stroke ischemia ischemic anoxia ischemic hypoxia ischemic stroke ischia ischial bone ischigualastia ischium isere isere river iseult isfahan isherwood ishmael ishtar isi isidor feinstein stone isidore auguste marie francois comte isinglass isis iskcon islam islam nation islamabad islamic army of aden islamic army of aden-abyan islamic calendar islamic calendar month islamic community islamic great eastern raiders-front islamic group islamic group of uzbekistan islamic jihad islamic jihad for the liberation of palestine islamic law islamic party of turkestan islamic republic of iran islamic republic of mauritania islamic republic of pakistan islamic resistance movement islamic state of afghanistan islamic ummah islamic unity islamism islamist islamophobia island island-dweller island dispenser island of guernsey island of jersey islander islands of langerhans islay isle isle of man isle of skye isle of wight isle royal national park isles of langerhans isles of scilly islet islets of langerhans ism ismaili ismailian ismailism isn isoagglutination isoagglutinin isoagglutinogen isoantibody isobar isobutyl nitrite isobutylene isobutylphenyl propionic acid isocarboxazid isochrone isoclinal isoclinic line isocrates isocyanate isocyanic acid isoetaceae isoetales isoetes isoflurane isogamete isogamy isogon isogonal line isogone isogonic line isogram isohel isolation isolationism isolationist isolde isole egadi isoleucine isomer isomerase isomerisation isomerism isomerization isometric isometric exercise isometric line isometrics isometropia isometry isomorphism isomorphy isoniazid isopleth isopod isopoda isopropanol isopropyl alcohol isoproterenol isoptera isoptin isopyrum isopyrum biternatum isordil isoroku yamamoto isosceles triangle isosmotic solution isosorbide isospondyli isostasy isotherm isothiocyanate isotonic exercise isotonic solution isotope isotropy israel israel baline israel strassberg israel zangwill israeli israeli defense force israeli monetary unit israelite israelites issachar issuance issue issuer issuing issus istanbul isthmian games isthmus isthmus of corinth isthmus of darien isthmus of kra isthmus of panama isthmus of suez isthmus of tehuantepec istiophoridae istiophorus istiophorus albicans isuprel isuridae isurus isurus glaucus isurus oxyrhincus isurus paucus it itaconic acid italia italian italian bee italian bread italian capital italian clover italian cypress italian dressing italian greyhound italian honeysuckle italian lira italian millet italian monetary unit italian parsley italian peninsula italian region italian renaissance italian republic italian rice italian rye italian ryegrass italian sandwich italian sonnet italian vegetable marrow italian vermouth italian woodbine italic italic language italo calvino italy itch itch mite itchiness itching itchy feet item itemisation itemization iteration iterative iterative aspect ithaca ithaki ithiel town ithunn itinerant itinerary itineration itraconazole iud iv iva iva xanthifolia ivan iii ivan iii vasilievich ivan iv ivan iv vasilievich ivan lendl ivan pavlov ivan petrovich pavlov ivan sergeevich turgenev ivan the great ivan the terrible ivan turgenev ivanov ives ivor armstrong richards ivory ivory-billed woodpecker ivory-nut palm ivory black ivory coast ivory coast franc ivory gull ivory nut ivory palm ivory plant ivory tower ivory tree ivorybill ivp ivry ivry la bataille ivy ivy-leaved geranium ivy arum ivy family ivy geranium ivy league ivy leaguer iw iwo iwo jima iww ix ixia ixobrychus ixobrychus exilis ixodes ixodes dammini ixodes dentatus ixodes neotomae ixodes pacificus ixodes persulcatus ixodes ricinus ixodes scapularis ixodes spinipalpis ixodid ixodidae iyar iyyar iz al-din al-qassam battalions izaak walton izanagi izanami izar izmir izzard Related Content Daily Word Quiz: charlatan Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language