96 entries under dull topic. ×

8
sluggish(adjective, simple, slow, silly)
7
half-witted(adjective, simple, slow, silly)
7
imbecilic(adjective, simple, slow, silly)
7
lumpish(adjective, heavy, stupid, vulgar)
7
moronic(adjective, simple, slow, silly)
6
backward(adjective, simple, slow, silly)
6
foolish(adjective, simple, slow, silly)
6
impassive(adjective, slow, stupid, unresponsive)
6
ponderous(adjective, big, heavy, substantial)
6
unintelligent(adjective, simple, slow, silly)
5
dopey(adjective, simple, slang, ability)
5
phlegmatic(adjective, slow, stupid, impassive)
5
torpid(adjective, slow, silly, stupid)
4
boorish(adjective, rough, slow, stupid)
4
dimwitted(adjective, simple, slang, ability)
4
fatheaded(adjective, slow, stupid)
4
mindless(adjective, simple, silly, foolish)
4
oafish(adjective, simple, rough, slow)
4
weak-minded(adjective, slow, stupid)
3
apathetic
11 years ago|30k views|share |citing 
APASmart Define. (2015). dense thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/dense/thesaurus/synonyms
ChicagoSmart Define. 2015. "dense thesaurus" https://smartdefine.org/dense/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, dense thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/dense/thesaurus/synonyms>.
MLASmart Define. "dense thesaurus" 17 July 2015. Web. 24 September 2026. <https://smartdefine.org/dense/thesaurus/synonyms>