Definitions

1. adjective

relating to or resembling the Styx, a river in Greek mythology that was said to be the boundary between the world of the living and the world of the dead.

“The ancient temple’s styxian atmosphere evoked a sense of foreboding and mortality.”

2. noun

a person or thing that is associated with or characterized by the qualities of the Styx.

“The styxian figure in the painting seemed to embody the essence of death and the afterlife.”