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

Synonyms & Similar Words

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Example Sentences

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

The more adult take is that these votes are not so much an irrational tantrum as a warning that a significant portion of Illinois feels increasingly alienated from its own government.

— The Editorial Board, Chicago Tribune, 10 Nov. 2026
Because the entire system is rewarded by doing more, investments in prevention are financially irrational.

— Paul Markovich, STAT, 2 Nov. 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

With 20th Television increasingly focused on supplying Disney platforms, integrating the two areas would not be unreasonable.

— Nellie Andreeva, Deadline, 5 Nov. 2026
Frimpong concluded that plaintiffs were likely to prove the practice violated the 4th Amendment’s protection against unreasonable seizures and the 5th Amendment’s guarantee of equal protection.

— Brittny Mejia, Los Angeles Times, 29 Oct. 2026

Definition of unreasonable

Adjective

Well, yes, this Court is an illegitimate Court on a number of levels.

— David Remnick, New Yorker, 30 Oct. 2026
Some people who file illegitimate disputes are simply looking to take advantage of the system and were never good customers to begin with.

— Arthur Zaczkiewicz, Footwear News, 30 Oct. 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 14 Nov. 2026.

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Synonyms of nonrational

adjective

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