from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Intoxicating or stupefying: heady liqueur.
- adj. Tending to upset the mind or the balance of senses: standing on a heady outcrop of rock.
- adj. Serving to exhilarate: the heady news of triumph.
- adj. Impetuous and rash: a heady outburst of anger.
- adj. Domineering; overbearing: too heady to reason with.
- adj. Swift and violent; headlong: a heady current.
- adj. Showing intelligence and good judgment; prudent: heady tactics.
- adj. Suffering from a headache: a heady, throbbing feeling.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. intoxicating or stupefying
- adj. tending to upset the mind or senses
- adj. exhilarating
- adj. intellectual
- adj. rash or impetuous
from the GNU version of the Collaborative International Dictionary of English
- adj. Willful; rash; precipitate; hurried on by will or passion; ungovernable.
- adj. Apt to affect the head; intoxicating; strong.
- adj. Violent; impetuous.
from The Century Dictionary and Cyclopedia
- Headstrong; rash; precipitate; hurried on by obstinacy or passion.
- Apt to affect the head; intoxicating.
- Violent; impetuous.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. marked by defiant disregard for danger or consequences
- adj. marked by the exercise of good judgment or common sense in practical matters
- adj. extremely exciting as if by alcohol or a narcotic
From Middle English hedi, hevedi, equivalent to head + -y. (Wiktionary)