pallid vs pallidness

pallid is not a noun while pallidness is a noun.

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

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

pallid (adjective)	pallidness (adjective)
abnormally deficient in color as suggesting physical or emotional distress
lacking in vitality or interest or effectiveness
(of light) lacking in intensity or brightness; dim or feeble