heady

1 a :  willful, rash <heady opinions> b :  violent, impetuous

2 a :  tending to intoxicate or make giddy or elated <heady wine> <being in such distinguished company was a heady experience> b :  giddy, exhilarated <heady with his success> c :  rich <a heady sauce> <a heady variety> d :  impressive <a man of heady accomplishments>

3 a :  marked by or showing good judgment :  shrewd, intelligent b :  intellectually stimulating or demanding