disdainful vs disdainfulness

disdainful is not a noun while disdainfulness is a noun.

Word	Noun	Adjective	Verb	Adverb
disdainful	No	Yes	No	No
disdainfulness	Yes	No	No	No

disdainful (noun)	disdainfulness (noun)
	the trait of displaying arrogance by patronizing those considered inferior

disdainful (adjective)	disdainfulness (adjective)
expressing extreme contempt
having or showing arrogant superiority to and disdain of those one views as unworthy