5
nutter(noun, neurotic)
5
oddball(noun, adjective, character, crazy, cuckoo)
5
raver(noun, adjective, character, lunatic, loony)
4
mad(adjective, crazy, odd, insane)
3
crank(noun, lunatic)
3
crazyman(noun, adjective, character, lunatic, dissentient)
3
energumen
3
fiend(noun, person, madness, insanity, lunatic)
3
loon
3
moron
3
phrenetic(adjective, crazy, mad, odd, insane)
3
weirdo(noun, character, crazy, loony, dissentient)
3
zealot(noun, person, madness, insanity, psycho)
2
crackbrain
2
crazy person(noun, expression, idiom, lunatic)
2
cuckoo(noun, adjective, lunatic)
2
daredevil
2
dement(character, loony, dissentient, neurotic, misfit)
2
demoniac
2
deranged person(noun, expression, character, lunatic, dissentient)
11 years ago|7k views|share |citing 
APASmart Define. (2015). madman thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/madman/thesaurus/synonyms
ChicagoSmart Define. 2015. "madman thesaurus" https://smartdefine.org/madman/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, madman thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/madman/thesaurus/synonyms>.
MLASmart Define. "madman thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/madman/thesaurus/synonyms>