Synonyms:
- abnormal,
- bereft of reason,
- brainsick,
- crackbrained,
- cracked,
- crazed,
- crazy,
- daft,
- deluded,
- demented,
- deprived of reason,
- deranged,
- disarranged,
- disjointed,
- dislocated,
- disoriented,
- displaced,
- distraught,
- flighty,
- hallucinated,
- insane,
- irrational,
- loco,
- lunatic,
- mad,
- maddened,
- manic,
- mazed,
- mental,
- mentally deficient,
- meshuggah,
- moon-struck,
- non compos,
- non compos mentis,
- not all there,
- not right,
- odd,
- of unsound mind,
- off,
- out,
- out of gear,
- out of joint,
- psycho,
- queer,
- reasonless,
- senseless,
- sick,
- stark-mad,
- stark-staring mad,
- strange,
- tetched,
- touched,
- unbalanced,
- unjointed,
- unsane,
- unsettled,
- unsound,
- wandering,
- witless