12
mad(adjective, wrong, crazy, confused, insane)
10
crazy(adjective, wrong, wild, sick, confused)
10
demented(adjective, wrong, crazy, confused, insane)
9
sick(adjective, crazy, crackers)
9
unbalanced(adjective, insane, sane)
7
disturbed(adjective, crazy, sick, crackers)
7
unhinged(adjective, insane)
6
bonkers(adjective, informal, insane, sane)
6
daft(adjective, wrong, crazy, confused, insane)
6
distracted
6
insane(adjective, wrong, wild, crazy, confused)
6
loco(adjective, slang, crazy, sick, insane)
6
lunatic(adjective, wrong, wild, crazy, confused)
5
cracked(adjective, wrong, informal, wild, crazy)
5
distraught(adjective, wrong, crazy, sick, confused)
5
gaga(adjective, informal, insane, sane, distraught)
5
moonstruck(adjective, insane, sane)
5
touched(adjective, informal, insane, sane)
5
unsound(adjective, crazy, sick, insane, sane)
4
deranged(adjective, wrong, crazy, confused, insane)
<123459>
11 years ago|6.5k views|share |citing 
APASmart Define. (2015). brainsick thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/brainsick/thesaurus/synonyms
ChicagoSmart Define. 2015. "brainsick thesaurus" https://smartdefine.org/brainsick/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, brainsick thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/brainsick/thesaurus/synonyms>.
MLASmart Define. "brainsick thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/brainsick/thesaurus/synonyms>