124 entries under noun topic. ×

23
crazy(adjective, wild, strange, silly)
19
nut(person, slang, crazy, sick)
16
eccentric(adjective, person, character, wild)
15
loony(adjective, slang, informal, wild)
14
crackpot(adjective, person, character, crazy)
13
kook(person, slang, sick, wise)
13
nutcase(slang, sick, fanatic, loony)
12
lunatic(adjective, wild, silly, foolish)
11
weirdo(person, character, slang, crazy)
10
crank(informal, crazy, wise, eccentric)
10
cuckoo(adjective, slang, silly, crazy)
9
character(person, eccentric, freak, oddball)
9
freak(person, character, crazy, nut)
9
oddball(adjective, person, character, crazy)
8
nutter(slang, sick, mad person)
8
zany(adjective, person, silly, foolish)
7
geek(freak, oddball)
7
madman
7
maniac(person, crazy, eccentric, cuckoo)
6
ding-a-ling(slang, wise, crackpot)
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APASmart Define. (2015). screwball thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/screwball/thesaurus/synonyms
ChicagoSmart Define. 2015. "screwball thesaurus" https://smartdefine.org/screwball/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, screwball thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/screwball/thesaurus/synonyms>.
MLASmart Define. "screwball thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/screwball/thesaurus/synonyms>