Characterized by intemperate drinking; riotous; noisy: as, “bacchanal feasts,”Relating to or resembling a bacchanal or the bacchanalia.n. One who celebrated the bacchanalia; a votary of Bacchus.n. One who indulges in drunken revels; one who is noisy and riotous; a drunkard: as, “each bold bacchanal,”n. plural Same as bacchanalia.n. Also bacchanalian.