sty·gian /ˈstɪʤ(i)ən/
 (a.)地獄的;陰森森的;黑暗的
 Styg·i·an a.  Of or pertaining to the river Styx; hence, hellish; infernal. See Styx.
 At that so sudden blaze, the Stygian throng
 Bent their aspect.   --Milton.
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 Stygian
      adj 1: hellish; "Hence loathed Melancholy.../In Stygian cave
             forlorn"- Milton
      2: 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]