luridness vs lurid

luridness is a noun but lurid is not a noun.

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

luridness (noun)	lurid (noun)
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

luridness (adjective)	lurid (adjective)
	shining with an unnatural red glow as of fire seen through smoke
	ghastly pale
	glaringly vivid and graphic; marked by sensationalism
	horrible in fierceness or savagery