87 entries under foolish topic. ×

5
wacky(adjective, silly, crazy, mad)
4
barmy(adjective, silly, crazy, mad)
4
flaky(adjective, silly, crazy, mad)
4
potty(adjective, silly, mad, insane)
4
preposterous(adjective, silly, unwise)
4
senseless(adjective, silly, unwise)
4
silly(adjective, crazy, mad, insane)
4
unbalanced(adjective, silly, crazy, mad)
4
unhinged(adjective, silly, mad, insane)
3
absurd(adjective, silly, unwise)
3
batty(adjective, silly, crazy, mad)
3
bizarre(adjective, silly, usual, unwise)
3
bonkers(adjective, silly, crazy, mad)
3
demented(adjective, silly, crazy, mad)
3
irrational(adjective, silly, unwise)
3
round the bend(expression, idiom, silly, mad)
3
schizo(noun, slang, silly, mad)
3
stupid(adjective, silly, unwise)
3
weird(adjective, silly, usual, unwise)
2
bats in the belfry(expression, idiom, silly, mad)
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APASmart Define. (2015). screwball thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/screwball/thesaurus/synonyms
ChicagoSmart Define. 2015. "screwball thesaurus" https://smartdefine.org/screwball/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, screwball thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/screwball/thesaurus/synonyms>.
MLASmart Define. "screwball thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/screwball/thesaurus/synonyms>