untruthful
Americanadjective
adjective
-
(of a person) given to lying
-
diverging from the truth; untrue
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.
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
He calls this truth-telling, no matter how untruthful his guests are.
From The Wall Street Journal ● Nov. 9, 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
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
