Compos mentis and Rational

Compos mentis

Compos mentis adjective - Having full use of one's mind and control over one's actions.
Usage example: went to court to prove that her grandmother was no longer compos mentis and needed a legal guardian

Rational is a synonym for compos mentis in sane topic. In some cases you can use "Rational" instead an adjective phrase "Compos mentis". popular alternative

Rational

Rational adjective - Having the ability to reason.

Compos mentis is a synonym for rational in sane topic. You can use "Compos mentis" instead an adjective "Rational". popular alternative

Cite this Source
Rational and Compos mentis. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/compos_mentis/rational
Compos mentis & Rational. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/compos_mentis/rational>.
Rational or Compos mentis. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/compos_mentis/rational.
Google Ngram Viewer shows how "compos mentis" and "rational" have occurred on timeline