/ Dictionary / Index P paper-thin: Meaning and Definition of Find definitions for: pa•per-thin Pronunciation: (pā'pur thin'), [key] — adj. extremely thin: a paper-thin razor blade. inadequate or unconvincing; flimsy: a paper-thin excuse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: paper-thin (Thesaurus) paper tape paper tiger Related Content Daily Word Quiz: torrid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language