55 entries under obtuse topic. ×

6
witless(adjective, dull, simple, slow, careless)
5
dull(adjective, weak, simple, careless, silly)
4
trivial(adjective, dull, simple, slight, poor)
3
dense(adjective, dull, simple, slow, silly)
3
half-witted(adjective, dull, simple, slow, silly)
3
unmindful(adjective, unperceptive, unobservant)
2
dim(adjective, dull, weak, simple, slow)
2
heedless(adjective, careless, stupid, unthinking)
2
injudicious(adjective, careless, foolish, stupid, rash)
2
slow(adjective, dull, simple, silly, foolish)
2
thick(adjective, dull, simple, slow, silly)
2
unreasoning(careless, stupid, unthinking, unintelligent)
1
absent-minded(careless, stupid, unthinking, unperceptive)
1
careless(adjective, stupid, unthinking, unperceptive)
1
confused(careless, stupid, unthinking, unperceptive)
1
gullible(adjective, dull, simple, slow, silly)
1
insensate(adjective, dull, simple, slow, silly)
1
lamebrained(careless, silly, stupid, unthinking, unintelligent)
1
reckless(adjective, careless, foolish, stupid, rash)
0
bovine(careless, stupid, unthinking, unperceptive)
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APASmart Define. (2015). inane thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/inane/thesaurus/synonyms
ChicagoSmart Define. 2015. "inane thesaurus" https://smartdefine.org/inane/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, inane thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/inane/thesaurus/synonyms>.
MLASmart Define. "inane thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/inane/thesaurus/synonyms>