unquestionable
Americanadjective
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not open to question; beyond doubt or dispute; indisputable; undeniable; certain.
an unquestionable fact.
-
above criticism; unexceptionable.
a man of unquestionable principles.
adjective
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indubitable or indisputable
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not admitting of exception or qualification
an unquestionable decision
Synonym Usage
See doubtless ( def. ).
Other Word Forms
Derived Forms
Etymology
Origin of unquestionable
First recorded in 1590–1600; un- 1 + 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.
"It's absolutely unquestionable that there's a very challenging situation facing the DfC along with all other departments right across the Executive," Gildernew said.
From BBC • May 3, 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
Candidate instructors, it stipulated, were to have a fluent knowledge of both the French and English languages, and only those of temperate habits and unquestionable character need apply.
From "Nine Stories" by J. D. Salinger
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.