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[uhn-trooth-fuh l] /ʌnˈtruθ fəl/
not truthful; wanting in veracity; diverging from or contrary to the truth; not corresponding with fact or reality.
Origin of untruthful
1325-75; Middle English; see un-1, truthful
Related forms
untruthfully, adverb
untruthfulness, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for untruthful
Contemporary Examples
Historical Examples
  • Every one knows that there is nothing so untruthful as Anno Domini, and Im convinced that neither of us is a day more than thirty.

    The Bishop's Apron W. Somerset Maugham
  • Nature is real, and why should man alone be untruthful and unreal?

    A Day's Ride Charles James Lever
  • He was also a kleptomaniac, and, of course, untruthful into the bargain.

  • There can be no question that he was idle, untruthful, and unreliable.

    A Great Man Arnold Bennett
  • If it is really so, then John was ashamed as an ordinary man, to have been untruthful in his writing and to have worn disguise.

    The Growth of a Soul August Strindberg
British Dictionary definitions for untruthful


(of a person) given to lying
diverging from the truth; untrue
Derived Forms
untruthfully, adverb
untruthfulness, noun
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
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