Synonyms of irrationality

irrationality

noun

as in unreasonableness

Related Words

• unreasonableness
• extremism
• radicalism
• excessiveness
• exorbitance
• immoderation
• excess
• intemperance
• insobriety
• extravagance
• immoderacy
• prodigality
• nimiety
• intemperateness

Dissimilar Words

• moderation
• temperance
• moderateness
• temperateness

Example Sentences

Recent Examples of irrationality

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

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