72 entries under noun topic. ×

46
crazy(adjective, person, weak, simple)
33
psychotic(adjective, person, crazy, mad)
29
loony(adjective, person, weak, simple)
28
maniac(adjective, person, crazy, mad)
21
madman(adjective, person, crazy, mad)
19
crackpot(adjective, person, crazy, mad)
16
psycho(adjective, person, silly, foolish)
15
kook(person, slang, mad, wise)
15
loco(adjective, slang, crazy, mad)
14
batty(adjective, slang, wild, silly)
13
neurotic(adjective, person, mad, insane)
12
crank(person, informal, crazy, mad)
12
cuckoo(adjective, person, slang, wild)
12
nut(person, slang, informal, crazy)
12
nuts(adjective, slang, wild, silly)
11
moonstruck(adjective, silly, foolish, stupid)
11
psychopath(person, mad, madness, insanity)
10
madcap(adjective, person, silly, crazy)
10
screwball(adjective, slang, wild, silly)
9
bedlamite(adjective, person, silly, foolish)
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APASmart Define. (2015). lunatic thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/lunatic/thesaurus/synonyms
ChicagoSmart Define. 2015. "lunatic thesaurus" https://smartdefine.org/lunatic/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, lunatic thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/lunatic/thesaurus/synonyms>.
MLASmart Define. "lunatic thesaurus" 6 August 2015. Web. 28 September 2026. <https://smartdefine.org/lunatic/thesaurus/synonyms>