bacchanalEnglishOxford New American Dictionarybacchanal /ˈbäkənäl, , ˈbɑkənɑl , ˈbakənäl, , ˈbækənɑl , ˈbakənl, ˈbækənl / mainly literary ▸ noun 1 an occasion of wild and drunken revelry: the debauched and alcoholic president was said to be organizing unceasing bacchanals. 2 a priest, worshiper, or follower of Bacchus. ▸ adjective another term for bacchanalian. – ORIGIN mid 16th century : from Latin bacchanalis, from the name of the god Bacchus.