Mental insanity and Mental disturbance

Mental disturbance and mental insanity are semantically related in mental illness topic. In some cases you can use "Mental disturbance" instead a noun "Mental insanity".

Mental disturbance noun - (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness.

Mental insanity and mental disturbance are semantically related in mental illness topic. You can use "Mental insanity" instead a noun phrase "Mental disturbance".