150 entries under foolish topic. ×

1
round the bend(expression, idiom, silly, unwise)
1
schizo(silly, unwise)
1
screw loose(expression, silly, unwise)
1
short-sighted(adjective, weak, simple, silly)
1
simple-minded
1
slow(dull, stupid, impractical, unintelligent)
1
thick(dull, stupid, absurd, outrageous)
1
tomfool
1
touched(silly, unwise)
1
trivial(adjective, dull, simple, slow, silly)
1
unbalanced(adjective, wild, silly, crazy)
1
unglued(silly, unwise)
1
unhinged(silly, unwise)
1
unrealistic(adjective, silly, fantastic, unwise)
1
unsafe
1
unsound(adjective, silly, stupid, crazy)
1
unstable
1
unthinking(adjective, dull, stupid, unintelligent)
1
unworkable(silly, fantastic, unwise, impractical)
1
unzipped(silly, unwise)
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APASmart Define. (2015). ludicrous thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/ludicrous/thesaurus/synonyms
ChicagoSmart Define. 2015. "ludicrous thesaurus" https://smartdefine.org/ludicrous/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, ludicrous thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/ludicrous/thesaurus/synonyms>.
MLASmart Define. "ludicrous thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/ludicrous/thesaurus/synonyms>