4
hothead
4
hysterical(adjective, insane)
4
nutcase
4
off(adjective, sane)
4
off-the-wall(adjective, crazy, mad, odd, insane)
4
schizoid(adjective, crazy, mad, insane)
4
schizophrenic(noun, adjective, person, silly, foolish)
4
stupid(adjective, weak, simple, silly, foolish)
4
unsettled(silly, foolish, stupid, hot, crazy)
3
abnormal
3
bughouse
3
cockeyed(adjective, knowledge, ability, informal, silly)
3
dingbat(noun, slang, wise, crackpot)
3
distracted(adjective, crazy, mad, odd, insane)
3
energumen
3
flaky(adjective, informal, silly, foolish, crazy)
3
fool
3
frantic(adjective, crazy, mad, odd, insane)
3
harum-scarum
3
imbecilic(adjective, weak, simple, knowledge, ability)
11 years ago|27k views|share |citing 
APASmart Define. (2015). lunatic thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/lunatic/thesaurus/synonyms
ChicagoSmart Define. 2015. "lunatic thesaurus" https://smartdefine.org/lunatic/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, lunatic thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/lunatic/thesaurus/synonyms>.
MLASmart Define. "lunatic thesaurus" 6 August 2015. Web. 25 September 2026. <https://smartdefine.org/lunatic/thesaurus/synonyms>