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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:

The U.S. is one of the undeniable winners of the AI boom, with tech giants pouring money into technology infrastructure across the country.

From The Wall Street Journal ● Oct. 16, 2026

Whether you like the song or not, its appeal is officially undeniable.

From Los Angeles Times ● Sep. 21, 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

Yet it is undeniable that Guimares and Konsa add elite quality and experience to Arsenal ranks, and ultimately the club feel they paid the going rate to get those deals over the line.

From BBC ● Sep. 5, 2026

The two of them, side by side, commanded an undeniable gravity that could silence three hundred scythes.

From "Scythe" by Neal Shusterman

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