pallor vs luridness

pallor and luridness both are nouns.

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

As nouns, pallor and luridness are synonyms defined as:

pallor and luridness: unnatural lack of color in the skin (as from bruising or sickness or emotional distress)

Other synonyms of pallor include achromasia, lividity, lividness, paleness, pallidness, wanness.

pallor (noun)	luridness (noun)
unnatural lack of color in the skin (as from bruising or sickness or emotional distress)	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