undeniable

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

ADJECTIVE

definite, proven

Synonyms

STRONGEST

certain evident indisputable irrefutable obvious unassailable unquestionable

WEAK

actual beyond doubt beyond question binding clear compulsory for sure inarguable incontestable incontrovertible indubitable manifest necessary no ifs and or buts obligatory open and shut patent positive real sound sure sure thing true unanswerable undoubted

Antonyms

STRONGEST

disputable doubtful dubious indefinite obscure questionable refutable uncertain unclear unreliable unsure vague

WEAK

contestable doubted unproven

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.

"We think the distance trend is undeniable," Darbon told me.

From BBC • Apr. 27, 2026

"We spent a decade learning that social media companies will not self-regulate. We have now perhaps 18 months before the same lesson becomes undeniable for AI."

From Barron's • Apr. 10, 2026

Even if Early was uncertain in the moment, the result is undeniable: a dizzying, disarming blend of humor and emotion — and one of the year’s boldest performances.

From Los Angeles Times • Apr. 8, 2026

What they are is addictive, catchy, energizing and undeniable.

From Salon • Apr. 4, 2026

Aristotelian philosophers thought that all true knowledge could be expressed in syllogistic form, arguing from indisputable premises to undeniable conclusions, all based on Evidence-Perspicuity.

From "The Invention of Science" by David Wootton

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