273 entries under adjective topic. ×

11
goofy(light, foolish, stupid, crazy)
11
moronic(weak, simple, knowledge, ability)
10
bananas(slang, crazy, mad, sane)
10
crazed(wild, silly, foolish, stupid)
10
dippy(light, knowledge, slang, ability)
10
gaga(informal, insane, sane, distraught)
10
maniacal(silly, foolish, stupid, crazy)
10
touched(wrong, informal, wild, silly)
9
asinine(weak, simple, careless, silly)
9
buggy(slang, silly, foolish, crazy)
9
fruity(slang, silly, foolish, insane)
9
harebrained(weak, simple, knowledge, ability)
9
imbecilic(weak, simple, knowledge, ability)
9
potty(wild, silly, foolish, stupid)
9
sappy(knowledge, slang, ability, foolish)
9
stupid(weak, simple, wrong, careless)
9
witless(foolish, crazy, mad, odd)
9
zany(weak, simple, knowledge, ability)
8
bedlamite(noun, person, keen, warm)
8
dumb(foolish, impractical, unintelligent, half-baked)
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APASmart Define. (2015). loony thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/loony/thesaurus/synonyms
ChicagoSmart Define. 2015. "loony thesaurus" https://smartdefine.org/loony/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, loony thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/loony/thesaurus/synonyms>.
MLASmart Define. "loony thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/loony/thesaurus/synonyms>