stodginess vs graveness

stodginess and graveness both are nouns.

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

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

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

stodginess (noun)	graveness (noun)
dull and pompous gravity	a manner that is serious and solemn