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Adjective: heady (headier,headiest)  he-dee
  1. Marked by the exercise of good judgment or common sense in practical matters
    "heady use of one's money";
    - judicious, wise
     
  2. Extremely exciting as if by alcohol or a narcotic
    - intoxicating
     
  3. Marked by defiant disregard for danger or consequences
    "heady enough to try to seize the gun from the hijacker";
    - foolhardy, rash, reckless

Derived forms: headiest, headier

See also: bold, exciting, prudent

Encyclopedia: Heady