/ Dictionary / Index U untruth: Meaning and Definition of Find definitions for: un•truth Pronunciation: (un-trth'), [key] — pl. -truths the state or character of being untrue. want of veracity; divergence from truth. something untrue; a falsehood or lie. unfaithfulness; disloyalty. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: untruth (Thesaurus) untruss untruthful 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