al·co·hol·ism ˈalkəhôˌlizəm/ noun noun: alcoholism an addiction to the consumption of alcoholic liquor or the mental illness and compulsive behavior resulting from alcohol dependency. "he had a long history of depression, drug abuse and alcoholism" I'm not sure I agree with that definition because it forces you to decide what addiction means. I define alcoholism as a behaviour that negatively affects your life. Period. Now I'm not measuring how much it negatively affects your life or why it does so. Just the fact that it's doing more harm than good should define it as a problem. What's your definition of alcohol?