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Synonyms

undeniable

American  
[uhn-di-nahy-uh-buhl] / ˌʌn dɪˈnaɪ ə bəl /

adjective

  1. incapable of being denied or disputed.

    undeniable evidence of arson.

    Synonyms:
    sure, certain, clear, evident, obvious, unquestionable, incontestable, incontrovertible
  2. not open to refusal.

    an undeniable call for help.

  3. unquestioned as to quality, merit, etc.; indisputably good.

    undeniable artistic talent.


undeniable British  
/ ˌʌndɪˈnaɪəbəl /

adjective

  1. unquestionably or obviously true

  2. of unquestionable excellence

    a man of undeniable character

  3. unable to be resisted or denied

"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 undeniable

First recorded in 1540–50; un- 1 + deniable

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.

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Vocabulary lists containing undeniable

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:

He could channel an undeniable pop hit out of that ether whenever he wanted.

From Salon ● Oct. 4, 2026

Open both eyes and an undeniable reality came into focus.

From Los Angeles Times ● Sep. 27, 2026

What is undeniable is that one Portuguese man on his computer in Budapest has had a seismic impact on global football.

From BBC ● Sep. 26, 2026

Spain's top criminal court opened an investigation into the events on Monday and largely based its ruling on the report, saying there was "undeniable facilitation" from Morocco.

From Barron's ● Sep. 8, 2026

There, and in a private meeting with Hitler, he had been mesmerized, as many visiting Americans were, by Hitler’s force of personality and by his undeniable accomplishments in resurrecting Germany’s economy.

From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown

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