78 entries under adjective topic. ×

7
absurd(knowledge, ability, foolish, senseless)
7
silly(noun, knowledge, ability, fool)
6
loony(knowledge, ability, informal, foolish)
6
lunatic(knowledge, ability, foolish)
6
preposterous(knowledge, ability, foolish)
6
zany(knowledge, ability, informal, fool)
5
crazy(knowledge, ability, informal, foolish)
5
daft
5
harebrained(knowledge, ability, foolish)
5
insane(knowledge, ability, foolish)
5
simple(noun, weak, ability, fool)
4
asinine
4
balmy(knowledge, slang, ability)
4
fatuous
4
foolish(knowledge, ability)
4
nonsensical(knowledge, ability, foolish)
4
senseless
4
stupid(informal, foolish)
3
brainless
3
cockeyed(knowledge, 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>