stuffiness vs graveness

stuffiness and graveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
stuffiness	Yes	No	No	No
graveness	Yes	No	No	No

As nouns, graveness is a hypernym of stuffiness; that is, graveness is a word with a broader meaning than stuffiness:

Other hypernyms of stuffiness include gravity, soberness, sobriety, somberness, sombreness.

stuffiness (noun)	graveness (noun)
dull and pompous gravity	a manner that is serious and solemn
the quality of being close and poorly ventilated
state of obstruction or stoppage or air in the nose or throat