sublimity vs magnanimousness

sublimity and magnanimousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
sublimity	Yes	No	No	No
magnanimousness	Yes	No	No	No

As nouns, magnanimousness is a hypernym of sublimity; that is, magnanimousness is a word with a broader meaning than sublimity:

sublimity: nobility in thought or feeling or style
magnanimousness: the quality of elevation of mind and exaltation of character or ideals or conduct

Other hypernyms of sublimity include grandeur, nobility, nobleness.

sublimity (noun)	magnanimousness (noun)
nobility in thought or feeling or style	the quality of elevation of mind and exaltation of character or ideals or conduct