infernal region vs nether region

infernal region and nether region both are nouns.

Word	Noun	Adjective	Verb	Adverb
infernal region	Yes	No	No	No
nether region	Yes	No	No	No

As nouns, infernal region and nether region are synonyms defined as:

infernal region and nether region: (Christianity) the abode of Satan and the forces of evil; where sinners suffer eternal punishment

Other synonyms of infernal region include Hell, Inferno, perdition, pit.

infernal region (noun)	nether region (noun)
(Christianity) the abode of Satan and the forces of evil; where sinners suffer eternal punishment	(Christianity) the abode of Satan and the forces of evil; where sinners suffer eternal punishment
(religion) the world of the dead