He became an alcoholic and lost his job.他变成酒鬼,并且丢了工作。
I drink a lot but I am not actually an alcoholic.我很能喝酒,但我并不真的是酒鬼。
She claims she's not an alcoholic because she doesn't drink alone. 她声称自己不是嗜酒如命者,因为她并不一个人独酌。
It was difficult for him to admit that he was an alcoholic.很难让他承认自己是酒鬼。

［派生词］ alcoholism n. 酒精中毒；酗酒
［同义词］ adj.  brewed, distilled,intoxicating n.  drunk, drunkard

alcoholic不用于比较等级。

用作定语
▲～+n.
Alcoholic drinks are relatively expensive.低度饮料相应地涨价了。
 This restaurant does not serve alcoholic beverages.这家餐厅不供应酒品。
This wine has a high alcoholic content.这种酒酒精含量高。
Could I have something non-alcoholic, like orange juice, please? 请给我些不含酒精的饮料,譬如橘子汁什么的行吗？
The guests left in an alcoholic haze.客人们醉醺醺地离去了。
用作表语
▲S+be+～
Most German wines aren't very alcoholic.大多数德国酒的酒精含量不是很高。
 Wine is more alcoholic than beer. 葡萄酒的酒精含量比啤酒高。