ignoble vs nobility

ignoble is not a noun while nobility is a noun.

Word	Noun	Adjective	Verb	Adverb
ignoble	No	Yes	No	No
nobility	Yes	No	No	No

ignoble (noun)	nobility (noun)
	the quality of elevation of mind and exaltation of character or ideals or conduct
	a privileged class holding hereditary titles
	the state of being of noble birth

ignoble (adjective)	nobility (adjective)
completely lacking nobility in character or quality or purpose
not of the nobility