stasis vs inactivity

stasis and inactivity both are nouns.

Word	Noun	Adjective	Verb	Adverb
stasis	Yes	No	No	No
inactivity	Yes	No	No	No

As nouns, inactivity is a hypernym of stasis; that is, inactivity is a word with a broader meaning than stasis:

Other hypernyms of stasis include inaction, inactiveness.

stasis (noun)	inactivity (noun)
inactivity resulting from a static balance between opposing forces	being inactive; being less active
an abnormal state in which the normal flow of a liquid (such as blood) is slowed or stopped	a disposition to remain inactive or inert
	the state of being inactive