ˌən-ˈrēz-nə-bəl
1
as in irrational
having no basis in reason or fact
an unreasonable assumption
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in unreasoning
not using or following good reasoning
an unreasonable respect for a man who did not deserve it
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of unreasonable
To do this is not unreasonable.
—
Abigail Van Buren, Boston Herald, 1 Mar. 2026
Hartsuch appealed, but in October 2025, the Iowa Court of Appeals upheld the district court’s ruling, setting the stage for Hartsuch’s newest lawsuit alleging the board’s actions were unreasonable, violated his rights and destroyed his livelihood.
—Clark Kauffman, Iowa Capital Dispatch, 28 Feb. 2026
Too much one-sidedness can deplete both enthusiasm and resources — and wanting a roughly reciprocal relationship is not unreasonable.
—Judith Martin, Dallas Morning News, 28 Feb. 2026
Sorsby could argue that damages were reasonably calculable in July 2025 and that $1 million is excessive and unreasonable, and effectively constitutes a penalty rather than a genuine estimate of loss to Cincinnati.
—Michael McCann, Sportico.com, 26 Feb. 2026
See All Example Sentences for unreasonable
Abigail Van Buren, Boston Herald, 1 Mar. 2026
Hartsuch appealed, but in October 2025, the Iowa Court of Appeals upheld the district court’s ruling, setting the stage for Hartsuch’s newest lawsuit alleging the board’s actions were unreasonable, violated his rights and destroyed his livelihood.
—Clark Kauffman, Iowa Capital Dispatch, 28 Feb. 2026
Too much one-sidedness can deplete both enthusiasm and resources — and wanting a roughly reciprocal relationship is not unreasonable.
—Judith Martin, Dallas Morning News, 28 Feb. 2026
Sorsby could argue that damages were reasonably calculable in July 2025 and that $1 million is excessive and unreasonable, and effectively constitutes a penalty rather than a genuine estimate of loss to Cincinnati.
—Michael McCann, Sportico.com, 26 Feb. 2026
See All Example Sentences for unreasonable
Recent Examples of Synonyms for unreasonable
Adjective
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So was Odysseus’s response considered irrational and over-the-top to ancient Greeks?—
Nina Metz,
Chicago Tribune,
9 Mar. 2026
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Those models lack sound scientific basis and produce irrational results, such as requiring that nuclear plants protect against radiation below naturally occurring levels.—
Teri Sforza,
Oc Register,
6 Mar. 2026
Adjective
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Bainbridge knew about secrets and unreasoning shame.—
Christopher Tayler,
Harpers Magazine,
27 Jan. 2026
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Let sound political prescience but take the place of an unreasoning prejudice, and this will be done.—
Frederick Douglass,
The Atlantic,
16 Aug. 2017
Adjective
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But those fears are unwarranted, according to Jennifer Cady, Minnesota Power’s vice president of external affairs.—
Peter Passi,
Twin Cities,
3 Mar. 2026
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However, Anne Lehman, who runs the mutual aid services for Smitten Kitten, says the influx brought unwarranted attention to the store.—
Marielle Mohs,
CBS News,
2 Mar. 2026
Adjective
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Even with policies such as unlimited paid time off, singles may hesitate to take vacations, fearing that their managers will see their reasons for taking time off as illegitimate.—
Peter McGraw,
The Conversation,
6 Mar. 2026
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Crime abhors a vacuum, and in Tommy’s absence, the Peaky Blinders gang has reformed under the aegis of his sociopathic illegitimate son Duke (Barry Keoghan).—
Damon Wise,
Deadline,
5 Mar. 2026
Adjective
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Trailing in most polls to a center-right challenger who has promised to restore Hungary's Western alliances and end its dependence on Russian energy, Orbán has ramped up unfounded accusations that Kyiv and the European Union seek to bankrupt Hungary by forcing it to financially assist Ukraine.—
Arkansas Online,
Arkansas Online,
5 Mar. 2026
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Fears that attacks on Iran could trigger a more widespread world war were unfounded.—
Boston Herald editorial staff,
Boston Herald,
5 Mar. 2026
Adjective
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Susman Godfrey represented Dominion Voting Systems in its defamation lawsuit against Fox News stemming from baseless allegations about the integrity of the 2020 election that were broadcast by the network.—
Sarah N. Lynch,
CBS News,
3 Mar. 2026
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The Secretary of State did not provide him an opportunity to address his baseless accusations before rushing to judgment and to the press.—
Olivia Rubin,
ABC News,
26 Feb. 2026
Adjective
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Both assertions are false, misleading, and entirely unsupported by the record.—
DeJanay Booth-Singleton,
CBS News,
27 Feb. 2026
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Confidence and Security Online communication carries the weight of uncertainty, so long as one is unsupported by verification systems.—
Daniel Fusch,
USA Today,
26 Feb. 2026
Adjective
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Trump has repeatedly claimed that some executive orders signed with an autopen should be considered invalid.—
Kaelan Deese,
The Washington Examiner,
4 Mar. 2026
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There is no grace period for this law, meaning trans and nonbinary people will have immediately invalid documents putting them at risk of a US$1,000 fine and up to six months in jail for driving with an invalid license.—
Noelle Martin,
The Conversation,
1 Mar. 2026
Cite this Entry
“Unreasonable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unreasonable. Accessed 13 Mar. 2026.
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