Dionysian

1. Greek Mythology.
   1. Of or relating to Dionysus.
   2. Of or devoted to the worship of Dionysus.
2. often dionysian Of an ecstatic, orgiastic, or irrational nature; frenzied or undisciplined: "remained the nearest to the instinctual, the irrational in music, and thus to the Dionysian spirit in art" (Musco Carner).
3. often dionysian In the philosophy of Nietzsche, of or displaying creative-intuitive power as opposed to critical-rational power.

[From Latin Dionȳsius, from Greek Dionūsios, from Dionūsos, Dionysus.]