Fool
Fool adjective - Showing or marked by a lack of good sense or judgment.
Usage example: he's always got some fool plan or other
Nonrational and fool are semantically related. In some cases you can use "Nonrational" instead an adjective "Fool".
Nonrational
Nonrational adjective - Not using or following good reasoning.
Fool and nonrational are semantically related. Sometimes you can use "Fool" instead an adjective "Nonrational".
Cite this Source
Nonrational and Fool. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/fool/nonrational
Fool & Nonrational. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/fool/nonrational>.
Nonrational or Fool. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/fool/nonrational.
Google Ngram Viewer shows how "fool" and "nonrational" have occurred on timeline