IRRATIONALITY Synonyms: 18 Similar and Opposite Words

irrationality

noun

Definition of irrationality

as in unreasonableness

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Recent Examples of irrationality The irrationality ensures that no petal is directly above another. — Manon Bischoff, Scientific American, 13 Oct. 2026 In other words, emotion, empathy and irrationality could be seen as some of the most powerful counterweights to AI. — Billy J. Stratton, The Conversation, 21 Aug. 2026 This is where the irrationality of antisemitic conspiracy gains no purchase among a reasoning and pragmatic populace; where government is led by people who grasp, and embrace, the seriousness of their responsibilities. — Rory Lancman, New York Daily News, 5 Aug. 2026 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

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

The brazen, unmasked calls to erase Israel triggered fierce bipartisan backlash from lawmakers condemning the rising wave of open extremism.

— Staff, FOXNews.com, 15 Oct. 2026
The same pattern is evident in the rise of Islamic fundamentalism in the 1960s and 1970s, which culminated in the establishment of Islamic regimes and the spread of Islamist extremism.

— Mansoor Moaddel, Foreign Affairs, 15 Oct. 2026

Definition of extremism

Noun

In some instances, student radicalism spilled over into yakuza activities.

— Ian Buruma, New Yorker, 12 Oct. 2026
But with the midterms approaching, Republicans are increasingly frustrated by the unexpected bromance, which threatens the party’s message about Democratic radicalism.

— Steve Peoples, Los Angeles Times, 23 Sep. 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 20 Oct. 2026.

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Synonyms of irrationality

noun

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