Synonyms for stygian

Adjective

1. Stygian, infernal (vs. supernal)

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

2. Acheronian, Acherontic, Stygian, dark (vs. light)

usage: 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