ghastliness vs luridness

ghastliness and luridness both are nouns.

Word	Noun	Adjective	Verb	Adverb
ghastliness	Yes	No	No	No
luridness	Yes	No	No	No

As nouns, ghastliness and luridness are synonyms defined as:

Other synonyms of ghastliness include grimness, gruesomeness.

ghastliness (noun)	luridness (noun)
the quality of being ghastly	the quality of being ghastly
	unnatural lack of color in the skin (as from bruising or sickness or emotional distress)
	the journalistic use of subject matter that appeals to vulgar tastes