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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

Derived 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.

“What is already clear, is that this election has been shaped by the pressing and undeniable concerns of the people of Los Angeles.”

From Los Angeles Times • Jun. 3, 2026

“While the existing residence carries undeniable charm, character, and a joyful spirit that mirrors Simmons’ distinctive personality, the true value lies in the land itself,” she said.

From MarketWatch • Jun. 3, 2026

Which it did, through a combination of on-field shenanigans, off-field corruption and undeniable footballing brilliance.

From The Wall Street Journal • May 22, 2026

Parents know that ‘touch a truck’ events held in many small towns, where enthusiasts can get up close with bright red firetrucks, are undeniable winners with small children.

From Barron's • May 13, 2026

“Lala!” she says, the strain in her voice undeniable.

From "Split the Sky" by Marie Arnold

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