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30 entries under foolish topic. ×

2
dim-witted
2
doltish
2
inane
2
stupid
1
absurd
1
asinine
1
blithering
1
blockheaded
1
bone-headed
1
brainless
1
chuckle-headed
1
crackpot
1
crazy
1
cretinous
1
dopey
1
dotty
1
dumb
1
foolish
1
goofy
1
half-witted
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APASmart Define. (2013). knuckle-headed thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/knuckle-headed/thesaurus/synonyms
ChicagoSmart Define. 2013. "knuckle-headed thesaurus" https://smartdefine.org/knuckle-headed/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2013, knuckle-headed thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/knuckle-headed/thesaurus/synonyms>.
MLASmart Define. "knuckle-headed thesaurus" 27 June 2013. Web. 24 September 2026. <https://smartdefine.org/knuckle-headed/thesaurus/synonyms>