Perversely bad, cruel, or wicked
So annoying or detestable as to deserve condemnation
Pertaining to hell
The lake of Avernus, as an entrance to the infernal regions, was sacred to her.
The programme was carried out by the so-called "infernal columns."
Let us preserve the sacred fire for the moment of the struggle with the infernal powers!
It is also the name of a river in the infernal regions.
His infernal cunning often defeated its own aims, checkmating him at the point of achievement by suggestions of duplicity or terror.