131 entries under mad topic. ×

10
screwball(noun, adjective, slang, wild, silly)
9
bedlamite(noun, adjective, person, silly, foolish)
9
dippy(adjective, weak, knowledge, slang, ability)
9
foolish(adjective, weak, simple, knowledge, ability)
9
unsound(adjective, foolish, crazy, unstable)
8
kooky(adjective, weak, simple, wild, silly)
8
mentally ill(expression, adjective, idiom, insane)
8
potty(adjective, wild, silly, foolish, crazy)
8
wild(adjective, silly, foolish, stupid, crazy)
7
bananas(adjective, slang, crazy, sane)
7
daffy(adjective, weak, simple, informal, silly)
7
fruity(adjective, slang, silly, foolish)
7
loopy(adjective, knowledge, ability, informal, foolish)
6
distraught(adjective, crazy, odd, confused)
6
nonsensical(adjective, knowledge, ability, crazy)
6
out to lunch(expression, adjective, idiom, silly)
6
preposterous(adjective, weak, simple, knowledge, ability)
6
senseless(adjective, crazy, odd, insane)
6
witless(adjective, foolish, crazy, odd)
6
zany(adjective, weak, simple, knowledge, ability)
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APASmart Define. (2015). lunatic thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/lunatic/thesaurus/synonyms
ChicagoSmart Define. 2015. "lunatic thesaurus" https://smartdefine.org/lunatic/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, lunatic thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/lunatic/thesaurus/synonyms>.
MLASmart Define. "lunatic thesaurus" 6 August 2015. Web. 29 September 2026. <https://smartdefine.org/lunatic/thesaurus/synonyms>