1
inept
1
irrational
1
mindless
1
moronic(adjective, simple, slow, stupid, boring)
1
numskulled(adjective, simple, slow, stupid, boring)
1
obscure
1
pea-brained
1
reasonless
1
scatterbrained(adjective, simple, slow, stupid, boring)
1
senseless
1
shallow(adjective, simple, slow, stupid, boring)
1
simple-minded(adjective, simple, slow, stupid, boring)
1
unintellectual(adjective, simple, slow, stupid, boring)
1
unreasoning
1
untalented
1
unthinking
1
unwise
1
vacuous(adjective, simple, slow, stupid, boring)
1
wearisome(adjective, simple, slow, stupid, boring)
0
Ocean surface wave(expression, idiom)
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APASmart Define. (2015). not bright thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/not_bright/thesaurus/synonyms
ChicagoSmart Define. 2015. "not bright thesaurus" https://smartdefine.org/not_bright/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, not bright thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/not_bright/thesaurus/synonyms>.
MLASmart Define. "not bright thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/not_bright/thesaurus/synonyms>