1
impractical(adjective, wrong, wild, crazy, mad)
1
irresponsible(adjective, wrong, wild, crazy, mad)
1
kookie
1
manic
1
mental
1
meshuga
1
nauseated
1
not right
1
nutty as a fruitcake(expression, adjective, idiom, crazy, sick)
1
off one's rocker(adjective, idiom, insane, sane)
1
offhand(adjective, inattention)
1
out of one's mind(adjective, idiom, insane, sane)
1
pale
1
possessed
1
queasy
1
queer
1
reasonless
1
screwball
1
screwy(adjective, slang, sane)
1
senseless
11 years ago|6.5k views|share |citing 
APASmart Define. (2015). brainsick thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/brainsick/thesaurus/synonyms
ChicagoSmart Define. 2015. "brainsick thesaurus" https://smartdefine.org/brainsick/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, brainsick thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/brainsick/thesaurus/synonyms>.
MLASmart Define. "brainsick thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/brainsick/thesaurus/synonyms>