inactivity vs wait

inactivity and wait both are nouns.

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

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

inactivity: being inactive; being less active
wait: the act of waiting (remaining inactive in one place while expecting something)

Other hyponyms of inactivity include pause, waiting, ease, relaxation, repose, rest, idleness, idling, loafing, delay, holdup.

inactivity (noun)	wait (noun)
being inactive; being less active	the act of waiting (remaining inactive in one place while expecting something)
a disposition to remain inactive or inert	time during which some action is awaited
the state of being inactive

inactivity (verb)	wait (verb)
	look forward to the probable occurrence of
	serve as a waiter or waitress in a restaurant
	stay in one place and anticipate or expect something
	wait before acting