/ Dictionary / Index V vigorous: Meaning and Definition of Find definitions for: vig•or•ous Pronunciation: (vig'ur-us), [key] — adj. full of or characterized by vigor: a vigorous effort. strong; active; robust: a vigorous youngster. energetic; forceful: vigorous steps; a vigorous personality. powerful in action or effect: vigorous law enforcement. growing well, as a plant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vigorous (Thesaurus) vigoroso vigoureux Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language