crazy person

Related

lunaticDeranged or irrational person
madmanDangerously unstable person
psychoSlang for unstable person
maniacViolently deranged person
nutcaseEccentric or deranged person

insane · unhinged · deranged · asylum · padded cell · straitjacket · raving · delusional · paranoid · schizo · freak · wacko · loony · crackpot · kook · eccentric · unstable · mental

Opposites

mental state

crazy personsound mind

Mental clarity and stability

behavioral rationality

crazy personreasonable person

Someone exercising sound judgment

pragmatist · realist · cool head · voice of reason

social perception

crazy personaverage person

Statistically typical individual

average Joe · conformist · straight arrow · square · pillar of the community

Familiarity: Top 2,000,000