a. [ From Head. ] 1. Willful; rash; precipitate; hurried on by will or passion; ungovernable. [ 1913 Webster ]
All the talent required is to be hot, to be heady, -- to be violent on one side or the other. Sir W. Temple. [ 1913 Webster ]
2. Apt to affect the head; intoxicating; strong. [ 1913 Webster ]
The liquor is too heady. Dryden. [ 1913 Webster ]
3. Violent; impetuous. “A heady currance.” Shak. [ 1913 Webster ]