adjective, un·tru·er, un·tru·est.

not true, as to a person or a cause, to fact, or to a standard.
unfaithful; false.
incorrect or inaccurate.

Origin of untrue

before 1050; Middle English untrewe, Old English un(ge)trēowe; see un-1, true
Related formsun·true·ness, noun

Synonyms for untrue

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for untrue

Contemporary Examples of untrue

Historical Examples of untrue

  • It would be untrue to say that Hester was not interested in the news.

    Weighed and Wanting

    George MacDonald

  • It is all untrue; actors were then, as now, only mummers without judgement.

  • In these many years I have never been untrue to you in a single thought.

    Little Dorrit

    Charles Dickens

  • But I will not believe you when you tell me what I know to be untrue.

    Alarms and Discursions

    G. K. Chesterton

  • All of which Tony Cornish remembered later; for it was untrue.

    Roden's Corner

    Henry Seton Merriman

British Dictionary definitions for untrue



incorrect or false
diverging from a rule, standard, or measure; inaccurate
Derived Formsuntrueness, noununtruly, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for untrue

Old English untreowe "unfaithful" (of persons), from un- (1) "not" + true (adj.). Cf. Middle Dutch ongetrouwe, Middle Low German ungetruwe, Old High German ungitriuwi, Old Norse utryggr. Meaning "contrary to facts" is attested from c.1300.

Online Etymology Dictionary, © 2010 Douglas Harper