achromasia vs pallidness

achromasia and pallidness both are nouns.

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

As nouns, achromasia and pallidness are synonyms defined as:

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

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

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