achromasia vs luridness

achromasia and luridness both are nouns.

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

As nouns, achromasia and luridness are synonyms defined as:

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

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

achromasia (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