Synonyms|1.5kAntonyms|380|Broader|20Narrower|16Related|2.1k
1
frail
1
frightful
1
fruitless
1
gormless
1
half-witted
1
hazy
1
ignorant
1
illiterate
1
imperceptive
1
insane
1
lamebrain
1
leaden
1
lightless
1
livid(adjective, pale, pleased, ashen)
1
lunkheaded
1
mindless
1
oafish
1
obscure
1
obscured
1
overcast
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APASmart Define. (2016). brilliant thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/brilliant/thesaurus/antonyms
ChicagoSmart Define. 2016. "brilliant thesaurus" https://smartdefine.org/brilliant/thesaurus/antonyms (accessed September 27, 2026).
HarvardSmart Define 2016, brilliant thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/brilliant/thesaurus/antonyms>.
MLASmart Define. "brilliant thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/brilliant/thesaurus/antonyms>