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)
<1234510>
2 years ago|55k views|share |citing 
APASmart Define. (2016). stupid thesaurus. Retrieved January 16, 2019, from https://smartdefine.org/stupid/thesaurus/synonyms
ChicagoSmart Define. 2016. "stupid thesaurus" https://smartdefine.org/stupid/thesaurus/synonyms (accessed January 16, 2019).
HarvardSmart Define 2016, stupid thesaurus, Smart Define, viewed 16 January, 2019, <https://smartdefine.org/stupid/thesaurus/synonyms>.
MLASmart Define. "stupid thesaurus" 2 April 2016. Web. 16 January 2019. <https://smartdefine.org/stupid/thesaurus/synonyms>