as in unreasonableness
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Recent Examples of irrationality
The irrationality of politicians suddenly makes sense.
—
The Editorial Board, Oc Register, 24 Feb. 2026
In such conditions, apparent irrationality can invite probing, hedging or reciprocal escalation.
—Andrew Latham, The Conversation, 26 Jan. 2026
Such irrationality proofs have been rare — and at times, according to longtime Quanta contributor Erica Klarreich, dramatic.
—Jordana Cepelewicz, Quanta Magazine, 18 Dec. 2025
When prompt instructions encouraged models to maximize rewards or hit specific financial goals, irrationality increased.
—Jesus Mesa, MSNBC Newsweek, 22 Oct. 2025
This irrationality, which is especially difficult to model, often boils down to computational constraints.
—John Werner, Forbes.com, 5 Aug. 2025
The Editorial Board, Oc Register, 24 Feb. 2026
In such conditions, apparent irrationality can invite probing, hedging or reciprocal escalation.
—Andrew Latham, The Conversation, 26 Jan. 2026
Such irrationality proofs have been rare — and at times, according to longtime Quanta contributor Erica Klarreich, dramatic.
—Jordana Cepelewicz, Quanta Magazine, 18 Dec. 2025
When prompt instructions encouraged models to maximize rewards or hit specific financial goals, irrationality increased.
—Jesus Mesa, MSNBC Newsweek, 22 Oct. 2025
This irrationality, which is especially difficult to model, often boils down to computational constraints.
—John Werner, Forbes.com, 5 Aug. 2025
Recent Examples of Synonyms for irrationality
Noun
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Will Carless covers extremism and emerging issues for USA TODAY.—
USA Today,
USA Today,
8 Mar. 2026
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His opponent James Fishback — a relative political unknown who has used racist and white nationalist rhetoric throughout his campaign — is highlighting the generational divide around extremism on the right in Florida.—
Claire Heddles,
Miami Herald,
5 Mar. 2026
Noun
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So far, all attempts to associate Buttigieg with his Gramscian father have failed—if anything, Buttigieg seems to have engaged in an oedipal reversal of the Gramscian formula, rejecting radicalism in favor of precisely the kind of technocratic capitalism that Gramsci would have detested.—
Graeme Wood,
The Atlantic,
3 Mar. 2026
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Warnings about the radicalism of Jay Jones and Spanberger never stuck.—
Ray Nothstine,
Washington Post,
10 Feb. 2026
Cite this Entry
“Irrationality.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/irrationality. Accessed 12 Mar. 2026.
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