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
Weak is a synonym for foolish in mental condition topic. In some cases you can use "Weak" instead an adjective "Foolish", when it comes to topics like silly, nonsensical.
Weak
Weak adjective - Not using or following good reasoning.
Usage example: your argument is weak
Foolish is a synonym for weak in mental condition topic. Sometimes you can use "Foolish" instead an adjective "Weak".
Both words in one sentence
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If the master has become weak or foolish enough to be killed by his apprentice, then obviously it was time for a new Sith Lord to take over anyway.
Source: Klingon Promotion -
Break Them by Talking: Bison nearly does this to Chun-Li in "The Strongest Woman in the World" when he calls her foolish and weak for not having her revenge against him when she had the chance.
- He coldly dismisses Arthur as a weak and foolish king before attempting to kill him "for the good of Camelot".
Cite this Source
Weak and Foolish. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/foolish/weak
Foolish & Weak. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/foolish/weak>.
Weak or Foolish. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/foolish/weak.
Google Ngram Viewer shows how "foolish" and "weak" have occurred on timeline