/ Dictionary / Index U unlikelihood: Meaning and Definition of Find definitions for: un•like•li•hood Pronunciation: (un-līk'lē-hood"), [key] — n. the state of being unlikely; improbability. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unlikelihood (Thesaurus) unlike unlikely 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