headcases
Mentally unhinged people
Headcases is the plural of headcase, informal for someone considered mentally unstable, eccentric, or difficult to deal with.
The term is dismissive but often affectionate: My family are all headcases.
In British English especially, it can suggest someone unpredictably volatile: Stay away from him—he's a complete headcase.
nutcase
Eccentric or deranged person
loose cannon · wild card · character · quirky · eccentric · madcap · zany · kooky · unhinged · unpredictable
unstable
Prone to sudden change
- disturbedEmotionally or mentally unsettled
- troubledExperiencing distress or anxiety
- unbalancedLacking equilibrium or stability
deranged · psychotic · manic · neurotic · therapy · counseling · disorder · breakdown · crisis · institutionalized
social conformity
headcasesconformists
Those obeying social norms
straight arrows · squares · normies · regular folks · ordinary people