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Synonyms

untruthful

American  
[uhn-trooth-fuhl] / ʌnˈtruθ fəl /

adjective

  1. not truthful; wanting in veracity; diverging from or contrary to the truth; not corresponding with fact or reality.


untruthful British  
/ ʌnˈtruːθfʊl /

adjective

  1. (of a person) given to lying

  2. diverging from the truth; untrue

"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

Other Word Forms

Etymology

Origin of untruthful

Middle English word dating back to 1325–75; see origin at un- 1, truthful

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Any account of the 14th Amendment that attempts to scrub away that history is untruthful.

From Slate ● Jul. 2, 2026

White suggested that Sir Simon was being "untruthful", which the claimant denied.

From BBC ● Jan. 27, 2026

Mathis’s attorney Goolsby said the statement that his client shut down the church was untruthful.

From The Wall Street Journal ● Oct. 8, 2025

The attorneys suggest that the Department of Homeland Security’s acting general counsel, Joseph Mazzara, may have given untruthful testimony.

From Salon ● Jun. 12, 2025

There’s no question that this Texas-of-the- mind fable is often synthetic, sometimes untruthful, and frequently romantic, but that in no way diminishes its strength as a symbol.

From "Travels with Charley in Search of America" by John Steinbeck

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