17 entries under noun topic. ×

9
crackpot(character, crazy, eccentric, lunatic)
7
loco
6
nutcase(character, dissentient, misfit, lamebrain)
5
nut(crazy, eccentric, fanatic, lunatic)
5
nutter
5
psycho
5
whacko
4
maniac
3
ding-a-ling(character, fanatic, dissentient, crackpot)
3
dingbat(character, crazy, fanatic, loony)
2
weirdo(character, crazy, loony, dissentient)
2
kook(person, crazy, eccentric, fanatic)
2
madman(character, crazy, loony, dissentient)
2
screwball
1
fruitcake(character, fanatic, dissentient, misfit)
1
crank
0
oddity
11 years ago|5.1k views|share |citing 
APASmart Define. (2015). wacko thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/wacko/thesaurus/synonyms
ChicagoSmart Define. 2015. "wacko thesaurus" https://smartdefine.org/wacko/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, wacko thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/wacko/thesaurus/synonyms>.
MLASmart Define. "wacko thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/wacko/thesaurus/synonyms>