Mental
Mental adjective - Of or relating to the mind.
Usage example: a funny mental image made him laugh out loud
Rational is a synonym for mental in intellectual topic. In some cases you can use "Rational" instead an adjective "Mental", when it comes to topics like concerning the mind.
Mutual synonyms
Both words in one sentence
- His partner, Trevor Phillips, uses similar rational, being a failed athlete (like Michael) and having been booted from the military due to his mental instability.
Source: Because I'm Good at It -
When he asks Kel how he knew all the things he seemingly had no plausible way of knowing, Kel gives a rational, mundane reason for each one.Kenan: See, I knew there had to be a logical explanation to all this... 'cause a boy can't have extra mental abilities without having regular mental abilities!
Source: Series / Kenan & Kel -
Cybernetics Eat Your Soul: Not massively present (any mental or personality dysfunctions are credited to other, more rational things).
Source: Video Game / Anarchy Reigns
Cite this Source
Rational and Mental. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/mental/rational
Mental & Rational. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/mental/rational>.
Rational or Mental. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/mental/rational.
Google Ngram Viewer shows how "mental" and "rational" have occurred on timeline