/ Dictionary / Index S successful: Meaning and Definition of Find definitions for: suc•cess•ful Pronunciation: (suk-ses'ful), [key] — adj. achieving or having achieved success. having attained wealth, position, honors, or the like. resulting in or attended with success. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: successful (Thesaurus) success succession Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language