Examples:
- was declared insane
- insane laughter
Antonyms:sane
Derivationally Related Form:insanenessinsanity
Inherited Hypernyms:insane
Similar to:around the bend balmy barmy bats batty bonkers buggy cracked crackers daft dotty fruity haywire kookie kooky loco loony loopy nuts nutty round the bend wacky whacky brainsick crazy demented disturbed mad sick unbalanced unhinged certifiable certified crackbrained idiotic crazed deranged half-crazed fey touched hebephrenic lunatic moonstruck maniac maniacal manic-depressive maniclike mentally ill unsound unstable non compos mentis of unsound mind paranoid psychopathic psychopathologic psychopathological psychotic raving mad wild schizophrenic screw-loose screwy
See also:irrational unreasonable