adjective

• 1Relating to the River Styx in Greek mythology.

  1. 1.1 literary Very dark.
     ‘the Stygian crypt’
     More example sentences

     • ‘The gleaming steel catches the sunlight, casting a play of sparkling reflections and shadows into the Stygian, subterranean depths.’
     • ‘The darkness of their hearts is infinite, Stygian - black as an adder, or Hitler's mustachios.’
     • ‘Shall thou, unburied, view the Stygian waters and the Furies' strong river, and unbidden draw near the bank?’
     • ‘The star-nosed mole, operating in the Stygian darkness of its burrow, can detect the presence of a tasty tidbit, such as an insect larva or tiny worm.’
     • ‘Light is drawn down into the bowels of this Stygian labyrinth through a series of vertical shafts that extend upwards to a plateau-like terrace wedged into the hillside at roof level.’
     Synonyms

     dark, black, pitch black, pitch dark, inky, sooty, dusky, dim, murky, shadowy, unlit

     View synonyms