Foolish
Foolish adjective - Showing or marked by a lack of good sense or judgment.
Usage example: a foolish scheme that was supposed to make us all rich
Stupid is a synonym for foolish in behaviour topic. In some cases you can use "Stupid" instead the word "Foolish" as an adjective or a noun, when it comes to topics like mental condition, property, empty, irrational. popular alternative
Stupid
Stupid adjective - Not having or showing an ability to absorb ideas readily.
Usage example: don't ask stupid questions
Foolish is a synonym for stupid in behaviour topic. You can use "Foolish" instead the word "Stupid" as an adjective or a noun, if it concerns topics such as mental condition, property, empty, irrational. popular alternative
Mutual synonyms
Both words in one sentence
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Dexter being the smart one, and Dee Dee being downright stupid and foolish one.
- Believe it or not, the current use of "nimrod" to mean a stupid, silly, or foolish person derives from Bugs Bunny using it sarcastically to taunt Elmer Fudd.
Source: The Catch Phrase Catches On -
Besides, most of the especially wicked, stupid, and foolish elves had gotten themselves killed before the end of the Third Age.
Source: Creator / J. R. R. Tolkien
Cite this Source
Stupid and Foolish. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/foolish/stupid
Foolish & Stupid. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/foolish/stupid>.
Stupid or Foolish. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/foolish/stupid.
Google Ngram Viewer shows how "foolish" and "stupid" have occurred on timeline