heady

adjective

1. Intoxicating or stupefying.“The cocktail was a heady mixture of spirits.”
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.”