Synonyms|108Antonyms|71|Broader|0Narrower|0Related|922

25 entries under knowledge topic. ×

5
crazy(adjective, ability, informal)
3
absurd(adjective, ability)
3
foolish(adjective, ability)
3
insane(adjective, ability)
3
lunatic(adjective, ability)
3
mad(adjective, ability)
3
preposterous(adjective, ability)
3
tomfool(adjective, ability, foolish)
2
balmy(adjective, slang, ability)
2
cockeyed(adjective, ability, informal)
2
dippy(adjective, slang, ability)
2
dopey(adjective, slang, ability)
2
harebrained(adjective, ability)
2
idiotic(adjective, ability)
2
imbecilic(adjective, ability, foolish)
2
jerky(adjective, slang, ability)
2
loony(adjective, ability, informal)
2
loopy(adjective, ability, informal, foolish)
2
moronic(adjective, ability)
2
nonsensical(adjective, ability)
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ChicagoSmart Define. 2013. "softheaded thesaurus" https://smartdefine.org/softheaded/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2013, softheaded thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/softheaded/thesaurus/synonyms>.
MLASmart Define. "softheaded thesaurus" 17 October 2013. Web. 22 September 2026. <https://smartdefine.org/softheaded/thesaurus/synonyms>