grandeur vs sublimity

grandeur and sublimity both are nouns.

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

As nouns, sublimity is a hyponym of grandeur; that is, sublimity is a word with a more specific, narrower meaning than grandeur:

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

Other hyponyms of grandeur include high-mindedness, idealism, noble-mindedness.

grandeur (noun)	sublimity (noun)
the quality of being magnificent or splendid or grand	nobility in thought or feeling or style
the quality of elevation of mind and exaltation of character or ideals or conduct