heady

adj

1. Intoxicating or stupefying.

   “The cocktail was a heady mixture of spirits.”

   “Lilac wine is sweet and heady, like my love / Lilac wine, I feel unsteady, like my love”

2. Tending to upset the mind or senses.

   “We looked out from a heady outcrop of rock.”

3. Exhilarating.

   “The rock concert was a heady mixture of their greatest hits.”

4. Intellectual.

   “Kierkegaard is rather heady reading for a high school student.”

5. Rash or impetuous.

   “He made such heady promises that when the time came, he was never able to fulfill them.”