Definitions

unquestionable

[uhn-kwes-chuh-nuh-buhl] / ʌnˈkwɛs tʃə nə bəl /

ADJECTIVE

definite; beyond doubt

Synonyms

STRONGEST

absolute indisputable self-evident undeniable unequivocal unmistakable

WEAK

accurate authentic bona fide certain clear cold conclusive dependable down pat downright established faultless flat flawless for certain genuine incontestable incontrovertible indubitable irrefutable manifest no ifs ands or buts obvious pat patent perfect positive real reliable superior sure sure-enough true undisputable undoubted unimpeachable veritable well-founded well-grounded

Antonyms

STRONGEST

disputable indefinite uncertain unsure vague

WEAK

doubtful questionable

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.

His personal charisma has been an unquestionable ingredient of his success, but polls suggest many of his supporters have tired of him and the corruption allegations that have swirled around his party.

From BBC • Apr. 5, 2026

“It’s unquestionable that climate change and environmental impacts are impacting the speed and severity of which things change. ... Climate resilience has to be part of the conversation.”

From Los Angeles Times • Jan. 27, 2026

What is unquestionable is that any prime minister would have struggled with the backdrop Sir Keir inherited.

From BBC • Jun. 27, 2025

The precision of the drops is astonishing, the impact heart-lifting, their moments of victory obvious and unquestionable.

From Los Angeles Times • Jan. 11, 2025

She wanted her life shaped now, immediately--and the decision must be made by some force--of love, of money, of unquestionable practicality--that was close at hand.

From " The Great Gatsby" by F. Scott Fitzgerald

unquestionable

Example Sentences

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