noble-mindedness vs nobleness

noble-mindedness and nobleness both are nouns.

Word	Noun	Adjective	Verb	Adverb
noble-mindedness	Yes	No	No	No
nobleness	Yes	No	No	No

As nouns, nobleness is a hypernym of noble-mindedness; that is, nobleness is a word with a broader meaning than noble-mindedness:

noble-mindedness: elevated ideals or conduct; the quality of believing that ideals should be pursued
nobleness: the quality of elevation of mind and exaltation of character or ideals or conduct

Other hypernyms of noble-mindedness include grandeur, magnanimousness, nobility.

noble-mindedness (noun)	nobleness (noun)
elevated ideals or conduct; the quality of believing that ideals should be pursued	the quality of elevation of mind and exaltation of character or ideals or conduct