damned vs goddamned

damned is a noun but goddamned is not a noun.

Word	Noun	Adjective	Verb	Adverb
damned	Yes	Yes	No	Yes
goddamned	No	Yes	No	Yes

As adjectives, damned and goddamned are synonyms defined as:

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

damned (noun)	goddamned (noun)
people who are condemned to eternal punishment

damned (adjective)	goddamned (adjective)
expletives used informally as intensifiers	expletives used informally as intensifiers
in danger of the eternal punishment of Hell

damned (adverb)	goddamned (adverb)
in a damnable manner	expressing anger, despair, frustration, approval, or surprise