mental disease

noun

1. any of the various forms of psychosis or severe neurosis.

noun

1. any of various disorders in which a person’s thoughts, emotions, or behaviour are so abnormal as to cause suffering to himself, herself, or other people

n.

1. mental illness

n.

1. Any of various psychiatric conditions, usually characterized by impairment of an individual’s normal cognitive, emotional, or behavioral functioning, and caused by physiological or psychosocial factors.mental disease mental disorder

1. Any of various psychiatric disorders or diseases, usually characterized by impairment of thought, mood, or behavior.