inconvenient vs convenience

inconvenient is not a noun while convenience is a noun.

Word	Noun	Adjective	Verb	Adverb
inconvenient	No	Yes	No	No
convenience	Yes	No	No	No

inconvenient (noun)	convenience (noun)
	a device or control that is very useful for a particular job
	a toilet that is available to the public
	the quality of being useful and convenient
	the state of being suitable or opportune

inconvenient (adjective)	convenience (adjective)
not suited to your comfort, purpose or needs
not conveniently timed