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
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of unreasonable
There are people who desire to drastically improve the health of our ecosystems who unknowingly struggle with unreasonable expectations.
—
Chris McKeown, Cincinnati Enquirer, 14 Feb. 2026
Several speakers said the restrictions put forward in the measure would put an unreasonable burden on service providers and facilities, who would be held liable if people seeking support are using or possessing drugs without their knowledge.
—Robin Opsahl, Iowa Capital Dispatch, 13 Feb. 2026
So expecting Ross to cover even half of the $54 million would be unprecedented and probably unreasonable to expect.
—Barry Jackson, Miami Herald, 13 Feb. 2026
Not unreasonable, except that decision got caught in the cross wires, and by the time Ben brings up the family-style platters to the saloon, there are no plates at the table.
—Rafaela Bassili, Vulture, 10 Feb. 2026
See All Example Sentences for unreasonable
Chris McKeown, Cincinnati Enquirer, 14 Feb. 2026
Several speakers said the restrictions put forward in the measure would put an unreasonable burden on service providers and facilities, who would be held liable if people seeking support are using or possessing drugs without their knowledge.
—Robin Opsahl, Iowa Capital Dispatch, 13 Feb. 2026
So expecting Ross to cover even half of the $54 million would be unprecedented and probably unreasonable to expect.
—Barry Jackson, Miami Herald, 13 Feb. 2026
Not unreasonable, except that decision got caught in the cross wires, and by the time Ben brings up the family-style platters to the saloon, there are no plates at the table.
—Rafaela Bassili, Vulture, 10 Feb. 2026
See All Example Sentences for unreasonable
Recent Examples of Synonyms for unreasonable
Adjective
-
Those sorts of things are irrational to me.—
CBS News,
CBS News,
15 Feb. 2026
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Although atheism is often associated with hyperrationality, this form of it is unapologetically irrational.—
Christopher Beha,
New Yorker,
14 Feb. 2026
Adjective
-
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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In each of the commercials, ordinary people seeking advice from an artificially-sounding person standing in for the AI chatbot were interrupted by unwarranted advertisements.—
Marco Quiroz-Gutierrez,
Fortune,
19 Feb. 2026
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Deputy Attorney General Todd Blanche fired back at Massie's claims of unwarranted redactions.—
John Parkinson,
ABC News,
10 Feb. 2026
Adjective
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Neither starts the series out with much in the way of prospects, with Jon the illegitimate, unacknowledged son of a Lord and Sansa relegated to the status of servant after her father is executed before her very eyes.—
Ryan Coleman,
Entertainment Weekly,
19 Feb. 2026
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Nelly herself is heavily reinterpreted by Fennell, imagined in this film as the illegitimate daughter of an aristocrat who serves as Cathy’s maid; the film also runs with modern readings of her character as a more proactive meddler in the doomed love between the main characters.—
Wilson Chapman,
IndieWire,
13 Feb. 2026
Adjective
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Mafi, of Garden Grove Unified, suggested that fear isn’t unfounded.—
Andre Mouchard,
Oc Register,
15 Feb. 2026
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This is spurious and completely unfounded.—
Letters to the Editor,
The Orlando Sentinel,
14 Feb. 2026
Adjective
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Despite the complaints that had been brought forward by school district employees, Cherry Creeks School said an investigation in 2025 came up as baseless and unfounded.—
Jack Lowenstein,
CBS News,
21 Feb. 2026
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Ex-Israeli intelligence officials told Fox News Digital that Epstein never worked for Mossad, describing the allegation as baseless and inconsistent with how the agency operates.—
Efrat Lachter , Amelie Botbol,
FOXNews.com,
15 Feb. 2026
Adjective
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But multiple flood events over the decades have continued to erode the older infrastructure, leaving parts of it unsupported.—
Dante Motley,
Austin American Statesman,
11 Feb. 2026
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But among the litany of possible adverse health outcomes listed, a new analysis in The Lancet published Thursday finds that 62 of those 66 risks are unsupported by reliable evidence.—
Elizabeth Cooney,
STAT,
5 Feb. 2026
Adjective
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Customers who purchased Synergy Restaurant gift cards were notified by Costco that those gift cards were now invalid.—
Marley Malenfant,
Austin American Statesman,
19 Feb. 2026
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Decisions made after August 2024 — shaped by years of public input and careful planning — were subsequently declared invalid.—
Haley Busch,
Sun Sentinel,
17 Feb. 2026
Cite this Entry
“Unreasonable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unreasonable. Accessed 24 Feb. 2026.
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