sobriety vs stuffiness

sobriety and stuffiness both are nouns.

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

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

Other hyponyms of sobriety include stodginess.

sobriety (noun)	stuffiness (noun)
abstaining from excess	dull and pompous gravity
a manner that is serious and solemn	the quality of being close and poorly ventilated
moderation in or abstinence from alcohol or other drugs	state of obstruction or stoppage or air in the nose or throat
the state of being sober and not intoxicated by alcohol