stygian   (Sound)

The adj stygian has 2 senses

• Stygian -- (hellish; "Hence loathed Melancholy.../In Stygian cave forlorn"- Milton)


• Acheronian, Acherontic, 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)