noun
drinking habit; drinking problem; intemperance
Refers to a habitual or problematic pattern of drinking alcohol, often implying excess or lack of control.
彼は飲酒癖が治らなくて、健康を害した。
He couldn't overcome his drinking habit and ruined his health.
飲酒癖のある人は、専門家に相談したほうがいい
People with a drinking problem should consult a specialist.
Refers to one's behavior when drunk, rather than the habit of drinking itself.
Compound of 飲酒 (drinking alcohol) and 癖 (habit, tendency).