bacchanalEnglishOxford Dictionary of Englishbacchanal /ˈbakən(ə)l , ˈbakənal / mainly literary ▸ noun 1 a wild and drunken celebration: the event has morphed into one of the most shamelessly drunken bacchanals on the social calendar. 2 a priest, worshipper, or follower of Bacchus. ▸ adjective another term for bacchanalian – ORIGIN mid 16th century: from Latin bacchanalis, from the name of the god Bacchus.