Certifiable and Rational

Opposite meaning words

Certifiable adjective - Having or showing a very abnormal or sick state of mind.

Usage example: raised by a feckless father and a mother who was clearly certifiable

Show all Definitions

Rational is an antonym for certifiable in mentally deranged topic.

Nearby Words: certify, certified, certification

Rational adjective - Having the ability to reason.

Show all Definitions

Certifiable is an antonym for rational.

Cite this Source

Rational and Certifiable. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/certifiable/rational

Certifiable & Rational. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/certifiable/rational>.

Rational or Certifiable. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/certifiable/rational.

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