Difference between Infernal and Diabolical

INFERNAL vs DIABOLICAL: NOUN

An inhabitant of hell or of the lower regions.
An inhabitant of hell
A person or thing of an infernal character in any sense, or of supposed infernal appearance: specifically applied to a fire-ship, torpedo, infernal machine, or the like.
An inhabitant of the infernal regions; also, the place itself.

Being of a lower world of the dead
Relating to or inhabiting hell
Expletives used informally as intensifiers
Extremely evil or cruel; expressive of cruelty or befitting hell
Of or relating to a lower world of the dead.
Of or relating to hell.
Fiendish; diabolical.
Abominable; awful.
Of or pertaining to, resembling, or inhabiting, hell; suitable for hell, or to the character of the inhabitants of hell; hellish; diabolical.
A machine or apparatus maliciously designed to explode, and destroy life or property.
(lapis infernalis), lunar caustic; formerly so called. The name was also applied to caustic potash.
Being of the underworld
Characteristic of or resembling hell
Very annoying; damned.
Diabolical or fiendish.
Stygian, gloomy.
Of or relating to a fire or inferno.
Of or relating to hell, or the world of the dead; hellish.
Of or pertaining to or characteristic of a very uncontrolled and intense fire

Extremely evil or cruel
Pertaining to the lower regions, or regions of the dead, the Tartarus of the ancients.
Pertaining to or resembling hell; inhabiting hell; suitable or appropriate to hell or its inhabitants; hellish; fiendish; diabolical: as, infernal cruelty.
Devilish, satanic, fiendlike, nefarious.

Diabolic, Cursed, Satanic, Evil, Goddamn, Nether, Damned, Wicked, Fiendish, Demonic, Diabolical, Chthonic, Stygian, Unholy, Hellish

Brutal, Horrific, Atrocious, Mephistophelian, Mephistophelean, Hellish, Infernal, Unholy, Demonic, Satanic, Evil, Wicked, Diabolic, Devilish, Fiendish

Diabolic, Cursed, Satanic, Evil, Goddamn, Nether, Damned, Wicked, Fiendish, Demonic, Diabolical, Chthonic, Stygian, Unholy, Hellish

Brutal, Horrific, Atrocious, Mephistophelian, Mephistophelean, Hellish, Infernal, Unholy, Demonic, Satanic, Evil, Wicked, Diabolic, Devilish, Fiendish

Virgil during the course of their infernal perambulations.
No weaklings can stand against our infernal foe.
Islamic period have become overlaid with infernal associations.
The Infernal deals strong area of effect damage.
Just hit that infernal metal box over there!
Till commons columbia school vecino infernal juego online?
Another stranger with more infernal secrets and advice!
Tartarus, the infernal regions of ancient Greek mythology.
You can now create an infernal max cape by combining a max cape and max hood with an infernal cape.
OSRS Infernal Cape Service; The Infernal Cape is a step up from the Fire Cape.