IRRATIONALITY Synonyms: 18 Similar and Opposite Words

irrationality

noun

Definition of irrationality

as in unreasonableness

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Recent Examples of irrationality Despite the seriocomic set-up, as Vibeke gets more unstable, Mengel refuses to play her irrationality for laughs, instead taking the more difficult route of earnestness. — Jessica Kiang, Variety, 7 July 2026 Moreover, experts should introduce deliberate irrationality to disrupt the model’s predictive path. — Syed Ahmad, Forbes.com, 15 May 2026 Viral memes and TikTok trends play up women’s purportedly excessive spike in libido during ovulation and dramatic irrationality during menstruation and the luteal phase (the 14 days or so between ovulation and menstruation). — Andréa Becker, The Atlantic, 3 May 2026 But this often requires accepting the fundamental irrationality of the wrapping-up process. — Joshua Rothman, New Yorker, 20 Mar. 2026 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

Recent Examples of Synonyms for irrationality

Noun

If the assassination made the President a Christlike figure, his forbearance in the face of a wife’s unreasonableness provides him with an extra measure of purity.

— Literary Hub, Literary Hub, 21 May 2026

Definition of unreasonableness

Noun

Researcher Peter Smith testified that the group, known as the True Crime Community, was a novel form of extremism distinguished by its lack of unifying ideology.

— N'dea Yancey-Bragg, USA Today, 29 July 2026
Suspect convicted of ties to Islamic extremism Ballout traveled to Lebanon in 2025 with the goal of going to Syria to join the Islamic State group, Berlin prosecutors said Sunday.

— Geir Moulson, Chicago Tribune, 26 July 2026

Definition of extremism

Noun

One of the insurgents, a doctoral student in sociology named Darializa Avila Chevalier, is far more emblematic of the DSA’s radicalism.

— James Kirchick, The Atlantic, 21 July 2026
For those manufacturers, and for the neoliberals who appropriated Kahlo to sell free trade with Mexico, her life of political radicalism is left unmentioned.

— Jonathon Keats, Forbes.com, 29 June 2026

Definition of radicalism

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irrationalities

irrationality

irreality

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“Irrationality.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/irrationality. Accessed 2 Aug. 2026.

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Synonyms of irrationality

noun

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