76 entries under simple topic. ×

15
dumb(adjective, dull, slow, silly)
13
nutty(adjective, weak, wild, silly)
12
brainless(adjective, dull, weak, slow)
12
unintelligent(adjective, dull, weak, mind)
11
loony(adjective, weak, knowledge, ability)
11
lunatic(adjective, weak, knowledge, ability)
10
mindless(adjective, dull, slow, silly)
10
unreasonable(adjective, weak, silly, foolish)
10
witless(adjective, dull, weak, slow)
9
dippy(adjective, knowledge, slang, ability)
9
wacky(adjective, weak, knowledge, slang)
8
dull(adjective, slow, silly, foolish)
7
dotty(adjective, weak, silly, foolish)
6
daffy(adjective, silly, foolish, stupid)
6
dopey(adjective, dull, knowledge, slang)
6
half-baked(adjective, dull, foolish, stupid)
6
half-witted(adjective, dull, weak, slow)
6
slow(adjective, dull, mind, think)
5
balmy(adjective, knowledge, slang, ability)
5
meaningless(adjective, dull, slow, silly)
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APASmart Define. (2016). idiotic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/idiotic/thesaurus/synonyms
ChicagoSmart Define. 2016. "idiotic thesaurus" https://smartdefine.org/idiotic/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, idiotic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/idiotic/thesaurus/synonyms>.
MLASmart Define. "idiotic thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/idiotic/thesaurus/synonyms>