Fool and Unreasonable

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

Unreasonable and fool are semantically related. In some cases you can use "Unreasonable" instead an adjective "Fool".

Unreasonable

Unreasonable adjective - Having no basis in reason or fact.

Fool and unreasonable are semantically related. Sometimes you can use "Fool" instead an adjective "Unreasonable".

Mutual synonyms

Cite this Source
Unreasonable and Fool. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/fool/unreasonable
Fool & Unreasonable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/fool/unreasonable>.
Unreasonable or Fool. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/fool/unreasonable.
Google Ngram Viewer shows how "fool" and "unreasonable" have occurred on timeline