indolence vs inactivity

indolence and inactivity both are nouns.

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

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

Other hypernyms of indolence include inactiveness, inertia.

indolence (noun)	inactivity (noun)
inactivity resulting from a dislike of work	being inactive; being less active
	a disposition to remain inactive or inert
	the state of being inactive