as in unreasonable
not using or following good reasoning
it's irrational to think that you can continue to consume an excess of calories and not gain weight
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Recent Examples of irrational
And yet, in the final seconds, against the surging and motivated Houston Rockets, something irrational crept back in.
—
Marcus Thompson Ii, New York Times, 6 Apr. 2026
Techlash is not irrational fear of innovation.
—Maha Hosain Aziz, MSNBC Newsweek, 31 Mar. 2026
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
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
See All Example Sentences for irrational
Marcus Thompson Ii, New York Times, 6 Apr. 2026
Techlash is not irrational fear of innovation.
—Maha Hosain Aziz, MSNBC Newsweek, 31 Mar. 2026
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
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
See All Example Sentences for irrational
Recent Examples of Synonyms for irrational
Adjective
-
Gill's decision came after Scott's lawyer requested to suspend the trial on the grounds that the grandparents had not met the state statute requiring them to prove Scott's decision to keep them from seeing Laila was unreasonable.—
Juliet Pennington,
PEOPLE,
24 Apr. 2026
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Keirans, 59, argued the 144-month prison term was unreasonable and that special conditions of supervised release were improper.—
CBS News,
CBS News,
24 Apr. 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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Motta had been completely unaware that the accidents Garrison and Alfortish had brought her were illegitimate, Toomey insisted.—
Patrick Radden Keefe,
New Yorker,
13 Apr. 2026
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The only one that can be called truly illegitimate by global and historical standards is the claim to the whole of the South China Sea.—
Anatol Lieven,
Twin Cities,
10 Apr. 2026
Cite this Entry
“Irrational.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/irrational. Accessed 27 Apr. 2026.
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