mental unsoundness

English Thesaurus

1. a state of mental disturbance and disorientation (noun.state)

hypernym	:	insanity,
definition	:	relatively permanent disorder of the mind (noun.state)

derivation	:	derange, unbalance,
definition	:	derange mentally, throw out of mental balance; make insane (verb.emotion)

derivation	:	derange, unbalance,
definition	:	derange mentally, throw out of mental balance; make insane (verb.emotion)