noun a song or dance in honor of bacchus.
2. bacchanal ·adj relating to bacchus or his festival.
3. bacchanal ·noun the festival of bacchus; the bacchanalia.
4. bacchanal ·noun drunken revelry; an orgy.
5. bacchanal ·adj engaged in drunken revels; drunken and riotous or noisy.
6. bacchanal ·noun a devotee of bacchus; one who indulges in drunken revels; one who is noisy and riotous when intoxicated; a carouser.