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
Is Alpha coping with a fear of infection or the unreasonable burden of all her mother’s anxieties?
—
Peter Debruge, Variety, 19 May 2025
As part of the siblings’ clemency application, the governor asked the board to determine whether the brothers pose an unreasonable risk of danger if released.
—Tim Stelloh, NBC news, 17 May 2025
Improve access and quality of pre- and post-natal support, maternal care and child healthcare – Effective leaders evaluate their benefits to ensure employees and their dependents have access to quality care and do not face unreasonable costs.
—John M. Bremen, Forbes.com, 16 May 2025
In a unanimous opinion, the justices said courts can look beyond the exact moment a police officer is using deadly force to determine if the force was unreasonable.
—Maureen Groppe, USA Today, 16 May 2025
See All Example Sentences for unreasonable
Peter Debruge, Variety, 19 May 2025
As part of the siblings’ clemency application, the governor asked the board to determine whether the brothers pose an unreasonable risk of danger if released.
—Tim Stelloh, NBC news, 17 May 2025
Improve access and quality of pre- and post-natal support, maternal care and child healthcare – Effective leaders evaluate their benefits to ensure employees and their dependents have access to quality care and do not face unreasonable costs.
—John M. Bremen, Forbes.com, 16 May 2025
In a unanimous opinion, the justices said courts can look beyond the exact moment a police officer is using deadly force to determine if the force was unreasonable.
—Maureen Groppe, USA Today, 16 May 2025
See All Example Sentences for unreasonable
Recent Examples of Synonyms for unreasonable
Adjective
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It's forged in the quiet, difficult moments when doing the right thing seems irrational.—
Victoria Vitchenco,
Forbes.com,
28 May 2025
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Rejecting his challenge in February 2024, Britain’s High Court said the decision to change Harry’s security status was neither irrational nor procedurally unfair.—
Henry Austin,
NBC news,
2 May 2025
Adjective
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But according to the National Tactical Officers Association, what happened next —agents using flash-bang grenades — was unwarranted.—
U T Editorial Board,
San Diego Union-Tribune,
6 June 2025
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His biggest issue going into Pittsburgh last year [from Denver] was taking unwarranted sacks.—
Pat Leonard,
New York Daily News,
6 June 2025
Adjective
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This secret-keeping tradition kept President François Mitterrand’s illegitimate daughter hidden for years.—
Saskya Vandoorne,
CNN Money,
27 May 2025
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Maduro, whose reelection last year to a third term has been condemned internationally as illegitimate, also has cracked down on his political opponents.—
Mark Sherman,
Chicago Tribune,
19 May 2025
Adjective
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However, kidney and urology experts say this fear is unfounded.—
Caitlin Pagán,
Verywell Health,
30 May 2025
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South Africa has categorically denied the allegations and the country's Ministry of International Relations and Cooperation told its American counterparts earlier this month that the claims were unfounded.—
Sonam Sheth,
MSNBC Newsweek,
21 May 2025
Adjective
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The court ordered that four of Trump’s executive orders are invalid and must be repealed.—
Chad de Guzman,
Time,
30 May 2025
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The suit argues that the designation of Chuckwalla was an invalid use of the Antiquities Act, and also claims the Antiquities Act itself is unconstitutional.—
Lila Seidman,
Los Angeles Times,
9 May 2025
Adjective
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While some grievances – expressed in a mixture of open letters, court filings, social media posts, TV interviews and off-the-cuff remarks – have aligned with the school’s own concerns, the university says others have been trivial and unsupported.—
Andy Rose,
CNN Money,
3 June 2025
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If one person encourages their partner’s adventures but feels unsupported on their own, that gap can undermine or even end a relationship.—
Blair Braverman,
Outside Online,
8 May 2025
Adjective
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Without a clear roadmap, friendship breakups often feel ambiguous, or sometimes lead to unnecessary hurt.—
Charles Trepany,
USA Today,
7 June 2025
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These unnecessary burdens slow them down, drain their energy, and keep them from reaching their next level.—
Jodie Cook,
Forbes.com,
6 June 2025
Adjective
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The site has a history of promoting groundless conspiracy theories.—
Tom Dreisbach,
NPR,
20 Feb. 2025
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On Thursday, Gottlieb and Hudson blasted the lawsuit as legally groundless and an effort to silence the actress.—
Daniel S. Levine,
People.com,
21 Mar. 2025
Cite this Entry
“Unreasonable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unreasonable. Accessed 10 Jun. 2025.
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