undeniable
Americanadjective
-
incapable of being denied or disputed.
undeniable evidence of arson.
- Synonyms:
- sure, certain, clear, evident, obvious, unquestionable, incontestable, incontrovertible
-
not open to refusal.
an undeniable call for help.
-
unquestioned as to quality, merit, etc.; indisputably good.
undeniable artistic talent.
adjective
-
unquestionably or obviously true
-
of unquestionable excellence
a man of undeniable character
-
unable to be resisted or denied
Other Word Forms
- undeniableness noun
- undeniably adverb
Etymology
Origin of undeniable
Explanation
Something undeniable is clearly true: it's undeniable that water is wet and the sky is blue. Undeniable things are obviously, clearly, totally, blatantly true, so true that it would be crazy to deny them. If you spilled soup in your lap, it's undeniable that you're wet and probably embarrassed. It's undeniable that a lot of dogs like chasing squirrels. On the other hand, it's undeniable that not everything is that simple. One person might deny what another thinks is flat-out undeniable.
Vocabulary lists containing undeniable
The Real Deal: Synonyms for "True"
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This Week in Words: August 11 - 17, 2018
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The Boy in the Striped Pajamas
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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.
"We spent a decade learning that social media companies will not self-regulate. We have now perhaps 18 months before the same lesson becomes undeniable for AI."
From Barron's • Apr. 10, 2026
Even if Early was uncertain in the moment, the result is undeniable: a dizzying, disarming blend of humor and emotion — and one of the year’s boldest performances.
From Los Angeles Times • Apr. 8, 2026
What they are is addictive, catchy, energizing and undeniable.
From Salon • Apr. 4, 2026
With social media, it may be difficult to prove causation for an individual, but once we consider population-level research, the link is undeniable, as it was with tobacco.
From The Wall Street Journal • Mar. 30, 2026
I need to find something that I must do, something undeniable.
From "The Girl on the Train" by Paula Hawkins
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.
