mental illness
noun
any of the various forms of psychosis or severe neurosis.
Also called
mental disorder,
mental disease.
Origin of mental illness
First recorded in 1960–65
Words nearby mental illness
mental healing,
mental health,
mental home,
mental hospital,
mental hygiene,
mental illness,
mental image,
mental impairment,
mental lexicon,
mental nerve,
mental point
British Dictionary definitions for mental disorder (1 of 2)
mental disorder
noun
law
(in England, according to the Mental Health Act 1983) mental illness, arrested or incomplete development of mind, psychopathic disorder, or any other disorder or disability of the mind
Derived forms of mental disorder
mentally disordered, adjectiveBritish Dictionary definitions for mental disorder (2 of 2)
mental illness
noun
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
Medical definitions for mental disorder (1 of 2)
mental disorder
n.
mental illness
Medical definitions for mental disorder (2 of 2)
mental illness
n.
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
Scientific definitions for mental disorder
mental illness
[ mĕn′tl ]
Any of various psychiatric disorders or diseases, usually characterized by impairment of thought, mood, or behavior.