Pertaining to Hades or hell.
Of, or relating to the geological eon.
The Hadean eon; part of the Precambrian supereon, spanning from around 4.6 to 4 billion years ago.
Of or relating to hell, or the world of the dead; hellish.
Very annoying; damned.
Of or relating to a fire or inferno.
Stygian, gloomy.
Diabolical or fiendish.