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.

Foreign minister Anand has called Arctic defence "an unquestionable national security priority of this government".

From BBC • Feb. 6, 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

“She displayed unquestionable strength and brought attention to the realities of powerful men in our orbit and the misconduct that has persisted for decades without repercussion.”

From Los Angeles Times • Jul. 2, 2025

His passion for theatre is unquestionable but his task in this job will be to champion other people’s work as well as his own.

From BBC • Sep. 13, 2024

Even so, it is unquestionable that Fanny’s life and then her death affected Emma profoundly.

From "Charles and Emma: The Darwins' Leap of Faith" by Deborah Heiligman

unquestionable

Example Sentences

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