25 entries under knowledge topic. ×

7
absurd(adjective, ability, foolish, senseless)
7
silly(noun, adjective, ability, fool)
6
loony(adjective, ability, informal, foolish)
6
lunatic(adjective, ability, foolish)
6
preposterous(adjective, ability, foolish)
6
zany(adjective, ability, informal, fool)
5
crazy(adjective, ability, informal, foolish)
5
harebrained(adjective, ability, foolish)
5
insane(adjective, ability, foolish)
4
balmy(adjective, slang, ability)
4
foolish(adjective, ability)
4
nonsensical(adjective, ability, foolish)
3
cockeyed(adjective, ability, informal)
3
dippy(adjective, slang, ability, foolish)
3
idiotic(adjective, ability, foolish)
3
jerky(adjective, slang, ability, foolish)
3
mad(adjective, ability, foolish)
3
sappy(adjective, slang, ability)
3
softheaded(adjective, ability, foolish)
3
wacky(adjective, slang, ability, informal)
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APASmart Define. (2015). tomfool thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/tomfool/thesaurus/synonyms
ChicagoSmart Define. 2015. "tomfool thesaurus" https://smartdefine.org/tomfool/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, tomfool thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/tomfool/thesaurus/synonyms>.
MLASmart Define. "tomfool thesaurus" 13 April 2015. Web. 21 September 2026. <https://smartdefine.org/tomfool/thesaurus/synonyms>