ˌən-ˈrēz-nə-bəl
1
as in irrational
having no basis in reason or fact
an unreasonable assumption
Synonyms & Similar Words
Relevance
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
Both Jaynes and Meany were accused by the Justice Department of aiding and abetting the deprivation of Taylor's Fourth Amendment right to be free from unreasonable searches and seizures.
—
Sarah N. Lynch, CBS News, 20 Mar. 2026
When patients have few to no symptoms, a kidney biopsy seems like an expensive and unreasonable ask.
—Charles Schmidt, Scientific American, 17 Mar. 2026
The lawsuit filed by Airlines for America contends that strict liability for wheelchair damage exposes carriers to unreasonable financial risk and that the regulatory approach is overly prescriptive in addressing industry practices.
—Los Angeles Times, 15 Mar. 2026
Because college football players can’t unionize and bargain rules, anti-tampering and other prohibitions aren’t exempt from antitrust scrutiny and can be challenged as unreasonable restraints on trade and price-fixing schemes.
—Michael McCann, Sportico.com, 12 Mar. 2026
See All Example Sentences for unreasonable
Sarah N. Lynch, CBS News, 20 Mar. 2026
When patients have few to no symptoms, a kidney biopsy seems like an expensive and unreasonable ask.
—Charles Schmidt, Scientific American, 17 Mar. 2026
The lawsuit filed by Airlines for America contends that strict liability for wheelchair damage exposes carriers to unreasonable financial risk and that the regulatory approach is overly prescriptive in addressing industry practices.
—Los Angeles Times, 15 Mar. 2026
Because college football players can’t unionize and bargain rules, anti-tampering and other prohibitions aren’t exempt from antitrust scrutiny and can be challenged as unreasonable restraints on trade and price-fixing schemes.
—Michael McCann, Sportico.com, 12 Mar. 2026
See All Example Sentences for unreasonable
Recent Examples of Synonyms for unreasonable
Adjective
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There’s something both early American and midcentury modern in the design of these solid-oak vanities, which arrived just as everyone seems to have gotten over an irrational fear of brown furniture.—
Nicole Hoey,
Robb Report,
31 Mar. 2026
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The answer turned out to be four more years of sacrifice, struggle, and hope that must have felt, at times, completely irrational.—
Sharon McMahon,
Glamour,
25 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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His lawyer Tikaram Bhattarai told Reuters that the arrest was unwarranted.—
CNN Money,
CNN Money,
28 Mar. 2026
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The law also prohibits public employees from using their official positions to obtain valuable, unwarranted privileges for themselves or others.—
Rick Sobey,
Boston Herald,
27 Mar. 2026
Adjective
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The show followed the destitute Cuylers — father Early, his illegitimate son Rusty, his meth-loving sister Lily, and his crabby grandmother Granny — and their various moneymaking high jinks.—
Eric Vilas-Boas,
Vulture,
18 Mar. 2026
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But then a mysterious Romany woman (Rebecca Ferguson) turns up, and persuades him to return to Birmingham, in order to bring his violent illegitimate son (Barry Keoghan) – who now runs his Peaky Blinders mob – to heel.—
The Week UK,
TheWeek,
12 Mar. 2026
Adjective
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Local election officials told the county Board of Supervisors last month that the complaint was unfounded.—
ABC News,
ABC News,
31 Mar. 2026
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The lesion that was removed from his brain is from the part of the brain that causes moments of unfounded fear.—
Gary Bedore,
Kansas City Star,
29 Mar. 2026
Adjective
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At the time, LGBTQ+ advocates slammed the suit as baseless and damaging.—
Brittny Mejia,
Los Angeles Times,
26 Mar. 2026
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Compounding that volume, legal workers say, is a disorienting veneer of legibility that AI can bring to flawed or baseless arguments.—
Maggie Harrison Dupré,
Futurism,
18 Mar. 2026
Adjective
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Many taller sleepers struggle with standard mattress lengths that leave their feet unsupported.—
Jason Phillips,
USA Today,
25 Mar. 2026
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Filing incorrect income information or claiming unsupported credits can delay refunds and potentially lead to penalties.—
Kurt Knutsson,
FOXNews.com,
12 Mar. 2026
Adjective
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Critics fear that if late counting goes away, potentially millions of legitimate votes could be deemed invalid.—
Michael Smolens,
San Diego Union-Tribune,
29 Mar. 2026
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Changes to the hepatitis B vaccines for newborns and COVID-19 shots made via earlier ACIP votes were deemed invalid.—
Mary Walrath-Holdridge,
USA Today,
22 Mar. 2026
Cite this Entry
“Unreasonable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unreasonable. Accessed 1 Apr. 2026.
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