1
loon(noun, slang, sick, mad person)
1
looneybin(noun, slang, sick, mad person)
1
loony tune(noun, slang, sick, mad person)
1
loopy
1
mad as a hatter(expression, crazy, sick, hacked, lunatic)
1
maddened
1
maniac(adjective, crazy, sick, sane, hacked)
1
maundering
1
mazed
1
mentally defective
1
mentally deficient
1
mentally handicapped
1
mentally retarded
1
meshuga
1
meshuggah
1
mishoogeh(noun, slang, sick, mad person)
1
mishugah(noun, slang, sick, mad person)
1
mongoloid
1
mooning(adjective, unconcerned, ignorant, unconscious, heedless)
1
moronic
11 years ago|2k views|share |citing 
APASmart Define. (2015). not all there thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/not_all_there/thesaurus/synonyms
ChicagoSmart Define. 2015. "not all there thesaurus" https://smartdefine.org/not_all_there/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, not all there thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/not_all_there/thesaurus/synonyms>.
MLASmart Define. "not all there thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/not_all_there/thesaurus/synonyms>