hellish; Hence loathed Melancholy.../In Stygian cave forlorn- Milton

[ Syn: stygian ]

dark and dismal as of the rivers Acheron and Styx in Hades; in the depths of an Acheronian forest; upon those roseate lips a Stygian hue-Wordsworth

[ Syn: acheronian , acherontic , stygian ]