weak-headed
adjective
easily intoxicated by alcoholic beverages.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In short, Mr Wilde, in a moment of weak-headedness, walked over the side of the mountain of fame and fell headlong from its height to the morass below, to lie there forgotten, neglected and abused.
From Oscar Wilde by Leonard Cresswell Ingleby