Synonyms|43Antonyms|0|Broader|0Narrower|0Related|0
1
idiotic(adjective, foolish)
1
ignorant(adjective, foolish)
1
imbecilic(adjective, foolish)
1
jackass(adjective, foolish)
1
lame-brained(adjective, foolish)
1
loony(adjective, foolish)
1
meat-headed(adjective, foolish)
1
moronic(adjective, foolish)
1
nitwit(adjective, foolish)
1
nonsensical(adjective, foolish)
0
block-headed
0
dull
0
dull-witted
0
dunderpated
0
insensitive
0
oafish
0
obtuse
0
slow-witted
0
thick
0
tiny-minded
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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>