4
comatose(adjective, dull, insensibility, physical insensibility)
4
dimwitted(adjective, dull, simple, slang, ability)
4
empty-headed(adjective, simple, careless, stupid, unthinking)
4
gormless
4
heartless(adjective, hard, indifferent, aloof, unfeeling)
4
inert(adjective, dull, heavy, stupid, impassive)
4
lethargic(adjective, dull, slow, stupid)
4
loutish(adjective, dull)
4
oafish(adjective, dull, simple, slow, stupid)
4
soft(adjective, silly, stupid, green, fat)
4
thoughtless(adjective, careless, silly, foolish, stupid)
4
undiscerning(adjective, careless, stupid, unthinking, unperceptive)
4
unemotional(adjective, dull, hard, unfeeling, unsympathetic)
4
unresponsive(adjective, dull, hard, simple, indifferent)
4
vague
4
weak-minded(adjective, dull, slow, stupid)
4
wooden
3
blunted
3
addle-pated
3
bleak
11 years ago|18k views|share |citing 
APASmart Define. (2015). obtuse thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/obtuse/thesaurus/synonyms
ChicagoSmart Define. 2015. "obtuse thesaurus" https://smartdefine.org/obtuse/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, obtuse thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/obtuse/thesaurus/synonyms>.
MLASmart Define. "obtuse thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/obtuse/thesaurus/synonyms>