lividness vs pallor

lividness and pallor both are nouns.

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

As nouns, lividness and pallor are synonyms defined as:

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

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

lividness (noun)	pallor (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)