/ Dictionary / Index U unlikely: Meaning and Definition of Find definitions for: un•like•ly Pronunciation: (un-līk'lē), [key] — adj., adv. -li•er, -li•est, —adj. not likely to be or occur; improbable; marked by doubt. holding little prospect of success; unpromising; likely to fail: He is an unlikely candidate for reelection. not ingratiating; objectionable. —adv. in an unlikely way. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unlikely (Thesaurus) unlikelihood unlimber Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language