282 entries under adjective topic. ×

7
unintelligent(dull, simple, slight, silly)
7
dotty
7
illogical(simple, poor, silly, stupid)
7
imbecile(dull, simple, silly, foolish)
7
irrational(careless, wild, silly, foolish)
7
nutty(wild, silly, foolish, stupid)
7
unreasonable(simple, poor, careless, silly)
7
unwise(simple, careless, wild, silly)
7
vapid(dull, weak, soft, slight)
6
dim-witted(foolish, stupid)
6
ignorant(simple, slight, silly, foolish)
6
nuts(simple, silly, foolish, unsound)
6
outlandish(silly, foolish, absurd, unwise)
6
puerile(dull, silly, foolish, stupid)
6
unthinking(dull, slight, careless, indifferent)
6
wacky(wild, silly, foolish, stupid)
6
witless(dull, simple, slow, careless)
5
blockheaded(foolish, impractical, half-baked, doomed)
5
crackpot(foolish, impractical, half-baked, doomed)
5
cuckoo(silly, foolish, unwise)
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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>