untrue
Americanadjective
-
not true, as to a person or a cause, to fact, or to a standard.
- Synonyms:
- erroneous, unfounded, groundless
-
unfaithful; false.
-
incorrect or inaccurate.
adjective
-
incorrect or false
-
disloyal
-
diverging from a rule, standard, or measure; inaccurate
Other Word Forms
Derived Forms
Etymology
Origin of untrue
before 1050; Middle English untrewe, Old English un ( ge ) trēowe; see un- 1, true
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.
Claims that “insider trading is rampant,” and that our insider trading rules are “fuzzier” than others are simply untrue.
From The Wall Street Journal • May 1, 2026
She added that the PM had also broken ministerial rules by "saying something deliberately untrue" when he claimed in February that Lord Mandelson had been given security clearance for the role.
From BBC • Apr. 16, 2026
Beneath the surface, however, Bohm has faced obstacles and oddities, including a frightening elbow infection and a viral social media post touting his generosity that was untrue.
From Los Angeles Times • Mar. 27, 2026
This in turn has facilitated scientific misconduct by a smaller number of scientists untrue to their calling.
From The Wall Street Journal • Mar. 24, 2026
“It’s not just that I don’t like prom. I also don’t like people who like prom,” I explained, although this was, in point of fact, untrue.
From "Paper Towns" by John Green
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.
