97 entries under stupid topic. ×

13
cracked(adjective, informal, wild, silly, foolish)
13
silly(adjective, light, weak, simple, wrong)
12
fatuous(adjective, weak, simple, wild, strange)
12
idiotic(adjective, weak, simple, knowledge, ability)
12
preposterous(adjective, weak, simple, wrong, knowledge)
11
daffy(adjective, weak, simple, pleasant, happy)
11
goofy(adjective, light, foolish, crazy)
11
moronic(adjective, weak, simple, knowledge, ability)
10
crazed(adjective, wild, silly, foolish)
10
dippy(adjective, light, knowledge, slang, ability)
10
maniacal(adjective, silly, foolish, crazy)
10
touched(adjective, wrong, informal, wild, silly)
9
asinine(adjective, weak, simple, careless, silly)
9
harebrained(adjective, weak, simple, knowledge, ability)
9
potty(adjective, wild, silly, foolish)
9
zany(adjective, weak, simple, knowledge, ability)
8
irrational(adjective, weak, simple, careless, wild)
8
unhinged(adjective, silly, foolish, unwise)
7
inane(adjective, foolish, fantastic, senseless)
7
ludicrous(adjective, light, foolish, crazy)
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APASmart Define. (2015). loony thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/loony/thesaurus/synonyms
ChicagoSmart Define. 2015. "loony thesaurus" https://smartdefine.org/loony/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, loony thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/loony/thesaurus/synonyms>.
MLASmart Define. "loony thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/loony/thesaurus/synonyms>