unquestionable
Americanadjective
-
not open to question; beyond doubt or dispute; indisputable; undeniable; certain.
an unquestionable fact.
-
above criticism; unexceptionable.
a man of unquestionable principles.
adjective
-
indubitable or indisputable
-
not admitting of exception or qualification
an unquestionable decision
Synonym Usage
See doubtless ( def. ).
Other Word 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.
One unquestionable element is its success in raising the low estimation of Green Lantern created by a particularly clumsy movie, simply by imagining possibilities in much bigger terms.
From Salon ● Aug. 14, 2026
This is less a survival narrative than a study of the mind’s refusal to accept extinction, the “positive, unquestionable nothingness” for which we are all, inevitably, headed.
From The Wall Street Journal ● Jul. 22, 2026
But Dallas also has Rookie of the Year Cooper Flagg, an unquestionable bright spot.
From The Wall Street Journal ● Jun. 22, 2026
Though he has not fully fired this season, City's commitment to the player is unquestionable as the two parties recently reached an agreement over a new contract at Etihad Stadium.
From BBC ● May 13, 2026
This event, his first unquestionable success, was a signal triumph for Francis.
From "Double Helix" by James D. Watson
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
