19 entries under stupid topic. ×

14
thick(adjective, slow)
13
fatuous(adjective, silly, impractical, unintelligent)
11
blockheaded(adjective, simple, slow, impulsive)
11
thickheaded(adjective, simple, slow)
7
doltish(adjective, simple, slow)
7
obtuse(adjective, simple, slow)
6
dim-witted(adjective, slow)
6
slow-witted(adjective, slow)
5
dense(adjective, simple, silly, unintelligent)
5
dumb(adjective, simple, slow, impulsive)
5
moronic(adjective, slow, silly, impulsive)
4
dopey(adjective, slow)
4
slow(adjective, impulsive, impractical, half-baked)
3
brainless(adjective, simple, slow, silly)
3
half-baked(adjective, impulsive, impractical, doomed)
3
insensitive
1
dimwitted
1
ignorant(slow, impulsive, impractical, half-baked)
1
numbskulled
11 years ago|6.9k views|share |citing 
APASmart Define. (2015). boneheaded thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/boneheaded/thesaurus/synonyms
ChicagoSmart Define. 2015. "boneheaded thesaurus" https://smartdefine.org/boneheaded/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, boneheaded thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/boneheaded/thesaurus/synonyms>.
MLASmart Define. "boneheaded thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/boneheaded/thesaurus/synonyms>