60
foolish(adjective, dull, weak, simple, wrong)
54
idiotic(adjective, dull, weak, simple, mind)
52
silly(adjective, weak, simple, wrong, careless)
51
half-assed
42
dumb(noun, adjective, dull, simple, ability)
42
moronic(adjective, dull, weak, simple, mind)
41
dull(adjective, dull, simple, flat, rough)
41
imbecilic(adjective, dull, weak, simple, slow)
36
absurd(adjective, weak, simple, wrong, wild)
34
inane(adjective, dull, careless, wild, silly)
34
nonsensical(adjective, dull, weak, simple, wrong)
33
senseless(adjective, dull, weak, simple, wrong)
32
crazy(adjective, weak, simple, wrong, wild)
30
fatuous(adjective, weak, simple, wild, silly)
27
asinine(adjective, weak, simple, silly, foolish)
27
ridiculous(adjective, weak, simple, wrong, mind)
27
unintelligent(adjective, dull, weak, simple, mind)
25
obtuse(adjective, dull, simple, ability, slow)
25
thick(adjective, dull, simple, ability, slow)
22
slow(adjective, dull, simple, flat, mind)
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APASmart Define. (2016). stupid thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/stupid/thesaurus/synonyms
ChicagoSmart Define. 2016. "stupid thesaurus" https://smartdefine.org/stupid/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, stupid thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/stupid/thesaurus/synonyms>.
MLASmart Define. "stupid thesaurus" 2 April 2016. Web. 21 September 2026. <https://smartdefine.org/stupid/thesaurus/synonyms>