inactivity vs activity

inactivity and activity both are nouns.

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

inactivity (noun)	activity (noun)
being inactive; being less active	any specific behavior
a disposition to remain inactive or inert	the trait of being active; moving or acting rapidly and energetically
the state of being inactive	an organic process that takes place in the body
	a process existing in or produced by nature (rather than by the intent of human beings)
	the state of being active
	(chemistry) the capacity of a substance to take part in a chemical reaction