nonvolatile vs volatile

nonvolatile is not a noun while volatile is a noun.

Word	Noun	Adjective	Verb	Adverb
nonvolatile	No	Yes	No	No
volatile	Yes	Yes	No	No

nonvolatile (noun)	volatile (noun)
	a volatile substance; a substance that changes readily from solid or liquid to a vapor

nonvolatile (adjective)	volatile (adjective)
not volatilizing readily	evaporating readily at normal temperatures and pressures
	tending to vary often or widely
	marked by erratic changeableness in affections or attachments
	liable to lead to sudden change or violence