Of or belonging to Hades, the underworld of the ancient Greeks.

Of or relating to Acheron (see Acheron, n.); infernal, hellish; dark, gloomy. Also as n.

= Tartarean, adj.1

Of or pertaining to Tartarus; Tartarean, infernal, hellish, very wicked.

Of or belonging to the Tartarus of the ancients; hence, pertaining to hell or to purgatory; infernal.

= Tartarean, adj.1

Of or belonging to Hades.

Pertaining to Tartarus; infernal; = Tartarean, adj.1

= Tartarean, adj.1