[uhn-trooth-fuh l]
See more synonyms for untruthful on Thesaurus.com

Origin of untruthful

Middle English word dating back to 1325–75; see origin at un-1, truthful
Related formsun·truth·ful·ly, adverbun·truth·ful·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for untruthful

Contemporary Examples of untruthful

Historical Examples of untruthful

  • Ah, then you admit you were untruthful when you said you laughed because you saw me?

  • Nature is real, and why should man alone be untruthful and unreal?

    A Day's Ride

    Charles James Lever

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

    A Great Man

    Arnold Bennett

  • I had no idea how insolent and untruthful these half-castes were.

  • And my opinion is that you are as uncivil as I've proved you to be untruthful.

    The Rescue

    Joseph Conrad

British Dictionary definitions for untruthful


  1. (of a person) given to lying
  2. diverging from the truth; untrue
Derived Formsuntruthfully, adverbuntruthfulness, 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