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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.

Keep Reading on Vocabulary.com

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.

Undeniable performances in “The Bear” — by Ayo Edebiri and Liza Colón-Zayas — meant James did not win in 2023 or 2024, either.

From Los Angeles Times • Jun. 4, 2025

The Undeniable Street View lets you take a journey past destroyed schools, playgrounds and homes.

From BBC • Mar. 25, 2023

"This is an excellent Super Bowl halftime performance. Undeniable hip-hop and R&B excellence."

From Salon • Feb. 14, 2022

Undeniable though these emotions may be, they hardly settle the issue.

From Scientific American • Mar. 6, 2020

Long Lauchie sighed, and Store Thompson murmured, "Undeniable, undeniable."

From The Silver Maple by MacGregor, Mary Esther Miller