28 entries under lunatic topic. ×

28
insane(noun, adjective, impractical, eccentric, half-baked)
21
crazy(noun, adjective, person, foolish, mad)
21
lunatic(noun, adjective, person, crazy, mad)
17
maniac(noun, person, crazy, mad, eccentric)
16
screwball(noun, adjective, person, character, slang)
15
kook(noun, person, character, slang, crazy)
15
madman(noun, adjective, person, crazy, mad)
15
nut(noun, character, slang, crazy, mad)
13
psychotic(noun, adjective, person, mad, madness)
11
crank(noun, informal, crazy, mad, original)
10
bedlamite(noun, person, character, crazy, nut)
10
mad(adjective, crazy, odd, insane)
9
freak(noun, person, crazy, nut, fanatic)
9
psycho(noun, person, mad, nut, fanatic)
9
psychopath(noun, person, crazy, mad, nut)
8
oddball(noun, adjective, character, crazy, eccentric)
6
fruitcake(noun, character, crazy, mad, eccentric)
6
zealot(noun, person, crazy, original, nut)
5
wacko(noun, character, crazy, eccentric)
4
fiend(noun, person, crazy, nut, fanatic)
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APASmart Define. (2015). crackpot thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/crackpot/thesaurus/synonyms
ChicagoSmart Define. 2015. "crackpot thesaurus" https://smartdefine.org/crackpot/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, crackpot thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/crackpot/thesaurus/synonyms>.
MLASmart Define. "crackpot thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/crackpot/thesaurus/synonyms>