2
weirdo
1
ding-a-ling
1
dingbat
1
flake
1
fruitcake
1
harebrain
1
kook
1
lamebrain
1
loony tunes
1
lunatic
1
maniac
1
nut
1
oddball
1
screwball
1
wacko
11 years ago|192 views|share |citing 
APASmart Define. (2015). crackpot thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/crackpot/thesaurus/narrower
ChicagoSmart Define. 2015. "crackpot thesaurus" https://smartdefine.org/crackpot/thesaurus/narrower (accessed September 21, 2026).
HarvardSmart Define 2015, crackpot thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/crackpot/thesaurus/narrower>.
MLASmart Define. "crackpot thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/crackpot/thesaurus/narrower>