Psychological disorder refers to a pattern of behavioral, cognitive, or physical symptoms that includes one or more of the following prominent features: (a) some degree of distress in the subject; (b) behavior indicating some degree of disability; and (c) an increased risk of suffering, death, pain, disability, or an important loss of freedom.
Other /More definition:
Psychological disorder refers to psychological dysfunction associated with distress or impairment in functioning that is not a typical or culturally expected response.

Moreover, Psychological disorder refers to a pattern of behavioral, cognitive, or physical symptoms that includes one or more of the following prominent features: (a) some degree of distress in the subject; (b) behavior indicating some degree of disability; and (c) an increased risk of suffering, death, pain, disability, or an important loss of freedom.
Other /More definition:
psychological disorder refers to psychological dysfunction associated with distress or impairment in functioning that is not a typical or culturally expected response.