drunk / drunken

Drunk is the past participle of drink: he had drunk two beers; he was drunk. As a past participle, drunk also modifies a noun: a drunk driver. Drunken is a separate attributive adjective, used before a noun for habit or for behavior: a drunken boast. After a linking verb, use drunk. Before a noun, use drunken when you mean habit or behavior; use drunk when you mean a current state.