adjective, head·i·er, head·i·est.
- intoxicating: a heady wine.
- affecting the mind or senses greatly: heady perfume.
- exciting; exhilarating: the heady news of victory.
- rashly impetuous: heady conduct.
- violent; destructive: heady winds.
- clever; shrewd: a heady scheme to win the election.
adjective headier or headiest
- (of alcoholic drink) intoxicating
- strongly affecting the mind or senses; extremely exciting
- rash; impetuous
late 14c., “headstrong, hasty, impetuous,” from head (n.) + adj. suffix -y (2). First recorded 1570s in sense of “apt to go to the head.”