64 entries under crazy topic. ×

21
lunatic(noun, adjective, person, mad)
20
loony(noun, adjective, person, informal, foolish)
17
maniac(noun, person, mad, eccentric)
16
screwball(noun, adjective, person, character, slang)
15
kook(noun, person, character, slang)
15
madman(noun, adjective, person, mad)
15
nut(noun, character, slang, mad)
11
crank(noun, informal, mad, original)
10
bedlamite(noun, person, character, nut)
10
mad(adjective, odd, insane, lunatic)
10
wild(adjective, mad, odd, insane)
9
freak(noun, person, nut, fanatic)
9
psychopath(noun, person, mad, nut)
8
absurd(adjective, foolish, mad, odd)
8
oddball(noun, adjective, character, eccentric)
8
weirdo(noun, character, slang, wise)
7
nonsensical(adjective, foolish, mad, odd)
7
eccentric(noun, adjective, character, original)
6
fruitcake(noun, character, mad, eccentric)
6
nut case(noun, expression, idiom, character)
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APASmart Define. (2015). crackpot thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/crackpot/thesaurus/synonyms
ChicagoSmart Define. 2015. "crackpot thesaurus" https://smartdefine.org/crackpot/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, crackpot thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/crackpot/thesaurus/synonyms>.
MLASmart Define. "crackpot thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/crackpot/thesaurus/synonyms>