gruesomeness vs luridness

gruesomeness and luridness both are nouns.

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

As nouns, gruesomeness and luridness are synonyms defined as:

Other synonyms of gruesomeness include ghastliness, grimness.

gruesomeness (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