infernalism

noun3

1. •
   Belief in the existence of hell, especially as a place of eternal and conscious torment after death.

   • Embedded within his argument is the view that infernalism is a less severe form of retributive punishment than annihilationism; […] — 2022
2. •
   (old-fashioned) Hellishness.

   • Paternalism has no terrors for me; indeed, I much prefer paternalism any time, in any form, and anywhere to infernalism in the way of bad roads. — 1895
3. •
   (old-fashioned) An infernal thing or act.

   • Is not the State an infernal institution? Why expect from it, then, anything but infernalisms? — 1886