Nonrational and Rational

Opposite meaning words

Nonrational adjective - Not using or following good reasoning.

Usage example: was so upset that he was completely nonrational for a moment

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Rational is an antonym for nonrational.

Rational adjective - Having the ability to reason.

Usage example: human beings are rational creatures

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Nonrational is an antonym for rational.

Cite this Source

Rational and Nonrational. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/nonrational/rational

Nonrational & Rational. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/nonrational/rational>.

Rational or Nonrational. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/nonrational/rational.

Google Ngram Viewer shows how "nonrational" and "rational" have occurred on timeline