NONRATIONAL Synonyms: 89 Similar and Opposite Words

nonrational

adjective

ˌnän-ˈrash-nəl

Definition of nonrational

as in irrational

not using or following good reasoning was so upset that he was completely nonrational for a moment

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Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of nonrational Mid-century collective behavior theories considered social movements to be nonrational, spontaneous events occurring during moments of social and cultural breakdown. — The Editors, JSTOR Daily, 10 Sep. 2025

Recent Examples of Synonyms for nonrational

Adjective

In both cases, cheap credit fueled the irrational exuberance.

— Annie Lowrey, The Atlantic, 21 July 2026
An irrational holding on to the possibility of a comeback, if that was the word if no one noticed you’d retired in the first place.

— Literary Hub, Literary Hub, 17 July 2026

Definition of irrational

Adjective

But in each event—in the living act, the undoubted deed—there, some unknown but still reasoning thing puts forth the mouldings of its features from behind the unreasoning mask.

— Literary Hub, Literary Hub, 6 July 2026
Roosevelt surely understood that nameless, unreasoning, unjustified fear cannot be eradicated.

— New York Times, New York Times, 9 June 2026

Definition of unreasoning

Adjective

Signature-matching efforts sometimes disqualify more legitimate than illegitimate ballots.

— Jeremy Kohler, ProPublica, 15 July 2026
If the Hand of God effectively flipped the bird to the English side—then as now, Diego Maradona’s first goal was farcically illegitimate—the Argentine captain’s subsequent score was something out of the divine intervention catalogue.

— Anthony Crupi, Sportico.com, 14 July 2026

Definition of illegitimate

Browse Nearby Words

nonrandom

nonrational

nonrealistic

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“Nonrational.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/nonrational. Accessed 25 Jul. 2026.

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Synonyms of nonrational

adjective

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