incorrect vs rightness

incorrect is not a noun while rightness is a noun.

Word	Noun	Adjective	Verb	Adverb
incorrect	No	Yes	No	No
rightness	Yes	No	No	No

incorrect (noun)	rightness (noun)
	according with conscience or morality
	conformity to fact or truth
	appropriate conduct; doing the right thing
	conformity with some esthetic standard of correctness or propriety

incorrect (adjective)	rightness (adjective)
not correct; not in conformity with fact or truth
not in accord with established usage or procedure
characterized by errors; not agreeing with a model or not following established rules
(of a word or expression) not agreeing with grammatical principles