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
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of unreasonable
The Fourth Amendment protects citizens against unreasonable searches and arrests, and requires warrants with probable cause of a crime before seizing a person or property.
—
Landon Mion, FOXNews.com, 6 Sep. 2025
For some of them, especially those animated by the conviction — not entirely unreasonable — that real power in America lies with shadowy, malevolent and unaccountable forces, the Epstein mythology is too central to their worldview to let go of.
—Michelle Goldberg, Mercury News, 6 Sep. 2025
Callahan was given citations for following too closely, failure to exercise due care to avoid a collision with a horse on the highway, and unreasonable speed, according to authorities.
—Sam Gillette, PEOPLE, 4 Sep. 2025
Trump blamed Schumer for poisoning the well with unreasonable demands, while the New York Democrat said the president’s nominees deserve an extra layer of scrutiny given his actions during the first eight months of his term.
—Al Weaver, The Hill, 4 Sep. 2025
See All Example Sentences for unreasonable
Landon Mion, FOXNews.com, 6 Sep. 2025
For some of them, especially those animated by the conviction — not entirely unreasonable — that real power in America lies with shadowy, malevolent and unaccountable forces, the Epstein mythology is too central to their worldview to let go of.
—Michelle Goldberg, Mercury News, 6 Sep. 2025
Callahan was given citations for following too closely, failure to exercise due care to avoid a collision with a horse on the highway, and unreasonable speed, according to authorities.
—Sam Gillette, PEOPLE, 4 Sep. 2025
Trump blamed Schumer for poisoning the well with unreasonable demands, while the New York Democrat said the president’s nominees deserve an extra layer of scrutiny given his actions during the first eight months of his term.
—Al Weaver, The Hill, 4 Sep. 2025
See All Example Sentences for unreasonable
Recent Examples of Synonyms for unreasonable
Adjective
-
Losing Fed independence is like giving free rein to emotional, irrational decision making.—
Hersh Shefrin,
Forbes.com,
8 Sep. 2025
-
Maura’s performance makes Maria Angeles so magnetic and eccentric — earthily practical on some matters, dizzily irrational on others, and sympathetically true to herself on all fronts — that all the film’s other players want for detail and texture by comparison.—
Guy Lodge,
Variety,
4 Sep. 2025
Adjective
-
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
-
This was after the Zandvoort race stewards appointed by the FIA determined Williams’ Right of Review petition was admissible and then agreed Sainz’s penalty for colliding with Racing Bulls driver Liam Lawson was unwarranted based on new evidence.—
Alex Kalinauckas,
New York Times,
13 Sep. 2025
-
Cincinnati's police union has said the charges against Tchervinski are unwarranted and were prompted by orders from the city.—
Cameron Knight,
Cincinnati Enquirer,
8 Sep. 2025
Adjective
-
The play’s serious depiction of class politics and illegitimate birth were considered shocking by contemporary audiences.—
Emily Zarevich,
JSTOR Daily,
11 Sep. 2025
-
After the death of Stebbins (Garrett Wareing), the Major’s illegitimate son, Ray and Pete are the only Long Walkers left.—
Louis Peitzman,
Vulture,
11 Sep. 2025
Adjective
-
Meanwhile, a growing body of research found that police regularly performed inadequate rape investigations, deciding reports were unfounded before interviewing witnesses, collecting evidence or testing DNA.—
Willoughby Mariano,
ProPublica,
11 Sep. 2025
-
The classic Stern misdirect briefly confused listeners and leaned into the unfounded rumors that SiriusXM wasn't planning to renew Stern’s current five-year contract, which expires in December.—
Melissa Ruggieri,
USA Today,
9 Sep. 2025
Adjective
-
Trump continues to make baseless claims about widespread noncitizen voting, has attempted to change voter registration rules to include proof-of-citizenship requirements, and has directed the Justice Department to prioritize prosecuting noncitizens who register or vote.—
Miles Parks,
NPR,
10 Sep. 2025
-
The progressive fear that the Abundance movement wants to take over the Democratic Party isn’t baseless at all — its adherents have plenty of influence in it now.—
David Weigel,
semafor.com,
8 Sep. 2025
Adjective
-
The company's Extended Security Updates (ESU) program provides critical and important security updates for unsupported OSes, but does not include new features, bug fixes, or technical support.—
PC Magazine,
PC Magazine,
15 Sep. 2025
-
Many Intel Macs still have between one and three years of security update support left; for unsupported Macs, your best bet is probably to keep using your older but officially supported macOS version for as long as it's patched.—
ArsTechnica,
ArsTechnica,
15 Sep. 2025
Adjective
-
Beijing maintains the ruling is invalid.—
Micah McCartney,
MSNBC Newsweek,
16 Sep. 2025
-
The other client of Miami’s Rawsi Williams in the Bar’s petition, however, filed a Bar grievance after the first settlement funds check sent to her was declared invalid by her bank.—
David J. Neal,
Miami Herald,
9 Sep. 2025
Cite this Entry
“Unreasonable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unreasonable. Accessed 19 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share