4
blockhead(noun, fool, sap, rustic, lout)
4
blunt(adjective, dull, heavy, thoughtless, impassive)
4
clod
4
cockamamie(weak, simple, foolish, unreasonable, illogical)
4
comatose(adjective, dull, senseless, unconscious)
4
deficient(adjective, dull, silly, foolish, intelligent)
4
dimwit(noun, fool, sap)
4
dizzy
4
dope
4
dozy
4
dry(adjective, dull, flat, ordinary, boring)
4
empty(adjective, dull, simple, silly, crazy)
4
fatheaded(dull, slow)
4
feebleminded(adjective, weak, simple, silly, foolish)
4
foolhardy(adjective, silly, foolish, crazy, rash)
4
gaga
4
green(adjective, silly, incompetent, thick, naive)
4
gullible(adjective, dull, simple, slow, silly)
4
ho-hum
4
imprudent(adjective, weak, simple, sharp, rough)
10 years ago|55k views|share |citing 
APASmart Define. (2016). stupid thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/stupid/thesaurus/synonyms
ChicagoSmart Define. 2016. "stupid thesaurus" https://smartdefine.org/stupid/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, stupid thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/stupid/thesaurus/synonyms>.
MLASmart Define. "stupid thesaurus" 2 April 2016. Web. 23 September 2026. <https://smartdefine.org/stupid/thesaurus/synonyms>