Rational and Zany

Opposite meaning words

Rational adjective - Having the ability to reason.

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Zany is an antonym for rational.

Zany adjective - Showing or marked by a lack of good sense or judgment.

Usage example: a zany plan to drive cross-country on a motorized scooter

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Rational is an antonym for zany.

Cite this Source

Zany and Rational. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/rational/zany

Rational & Zany. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/rational/zany>.

Zany or Rational. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/rational/zany.

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