Final answer:
Disinhibited behavior is not characteristic of a major depressive episode; it is more commonly related to conditions involving impulse control issues.
Step-by-step explanation:
The characteristic that is not typically associated with a major depressive episode is disinhibited behavior. Major depressive episodes are usually marked by symptoms such as decreased interest in activities, feelings of sadness or hopelessness, changes in appetite, sleep disturbances, and physical symptoms like headache or digestive issues. Disinhibited behavior is more commonly related to conditions involving a loss of impulse control, such as manic episodes or certain personality disorders, rather than depression.