goddam vs infernal

goddam is not a noun while infernal is a noun.

Word	Noun	Adjective	Verb	Adverb
goddam	No	Yes	No	Yes
infernal	Yes	Yes	No	No

As adjectives, goddam and infernal are synonyms defined as:

Other synonyms of goddam include blame, blamed, blasted, blessed, damn, damned, darned, deuced, goddamn, goddamned.

goddam (noun)	infernal (noun)
	an inhabitant of Hell

goddam (adjective)	infernal (adjective)
expletives used informally as intensifiers	being of the underworld
	characteristic of or resembling Hell
	of or pertaining to or characteristic of a very uncontrolled and intense fire
	expletives used informally as intensifiers
	extremely evil or cruel; expressive of cruelty or befitting hell

goddam (adverb)	infernal (adverb)
expressing anger, despair, frustration, approval, or surprise