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.

When confronted with an undeniable fact — in this case, thousands of people booing a sitting president — the healthy human mind adjusts its understanding of reality.

From Salon • Jun. 11, 2026

The allure of this assignment, in her home city, is undeniable.

From Los Angeles Times • Jun. 3, 2026

That the big AI spenders are reshaping their balance sheets and cash flow statements is undeniable.

From Barron's • Jun. 2, 2026

It is undeniable that the economics of television and late night have changed.

From MarketWatch • May 15, 2026

I like Dusting best, for its undeniable logic and a certain kind of austere beauty.

From "Nickel and Dimed: On (Not) Getting By in America" by Barbara Ehrenreich

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