unquestionably
Americanadverb
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in a way that is beyond question or doubt; certainly.
Can you say that he is unquestionably guilty of this crime?
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in a way that is above criticism or without exception.
As a wife and mother, she is unquestionably devoted.
adverb
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indisputably; definitely
an unquestionably great club
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(sentence modifier) without a doubt; certainly
unquestionably there were costs incurred
Etymology
Origin of unquestionably
First recorded in 1610–20; unquestionab(le) ( def. ) + -ly ( def. )
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.
The Pompidou Centre in Paris, with which Hockney collaborated for two landmark exhibitions, described him as "unquestionably one of the major figures of contemporary art".
From BBC • Jun. 12, 2026
While corvids and parrots are unquestionably brainy, they flounder with some cognitive tasks.
From The Wall Street Journal • May 22, 2026
Taken together, these moments point to a broader reality: The end of Colbert’s show unquestionably marks the end of an era.
From Salon • May 19, 2026
If it were five years ago, this would be unquestionably good news for one company: Intel.
From Barron's • May 8, 2026
The answer to this seemed, almost unquestionably, No. Not only did he behave as if he wasn’t attracted to Bunny, he acted as if he were hardly able to stand him.
From "The Secret History" by Donna Tartt
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.
