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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:

Laferte, who lives in Mexico, was vacationing with her family in Paris when she spoke to De Los about her songwriting compulsion, the undeniable power of her voice, and a lifelong struggle with mental health.

From Los Angeles Times Jul. 21, 2026

Yet his impact on the pitch was undeniable.

From BBC Jul. 11, 2026

Platner’s baritone voice, working-man aesthetic, and rough-around-the-edges vibe seemed to be as much part of his appeal as any of his policy positions and his undeniable charisma.

From Slate Jul. 7, 2026

It seems undeniable that AI is a bubble, and I think a lot of people are waiting for what happens when it pops.

From Salon Jun. 22, 2026

He holds my gaze, and I feel the same pull I’ve always felt toward him, an undeniable gravity that dares me to close the gap between us.

From "Five Feet Apart" by Rachael Lippincott

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