pathology vs inactive

pathology is a noun but inactive is not a noun.

Word	Noun	Adjective	Verb	Adverb
pathology	Yes	No	No	No
inactive	No	Yes	No	No

pathology (noun)	inactive (noun)
the branch of medical science that studies the causes and nature and effects of diseases
any deviation from a healthy or normal condition

pathology (adjective)	inactive (adjective)
	(military) not involved in military operations
	not active physically or mentally
	(pathology) not progressing or increasing; or progressing slowly
	lacking activity; lying idle or unused
	lacking in energy or will
	(of e.g. volcanoes) not erupting and not extinct
	not exerting influence or change
	not engaged in full-time work
	not in physical motion
	(chemistry) not participating in a chemical reaction; chemically inert