/ Dictionary / Index U untrue: Meaning and Definition of Find definitions for: un•true Pronunciation: (un-tr'), [key] — -tru•er, -tru•est. not true, as to a person or a cause, to fact, or to a standard. unfaithful; false. incorrect or inaccurate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: untrue (Thesaurus) untrod untruss Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language