stodginess vs sobriety

stodginess and sobriety both are nouns.

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

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

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

stodginess (noun)	sobriety (noun)
dull and pompous gravity	abstaining from excess
	a manner that is serious and solemn
	moderation in or abstinence from alcohol or other drugs
	the state of being sober and not intoxicated by alcohol