BACCHANALIA Meaning of BACCHANALIA in English n.pl. 1. the Roman festival of Bacchus. 2 (bacchanalia) a drunken revelry. Derivatives: Bacchanalian adj. & n. Etymology: L, neut. pl. of bacchanalis: see BACCHANAL Oxford English vocab. Оксфордский английский словарь. 2012