responsible vs responsibility

responsible is not a noun while responsibility is a noun.

Word	Noun	Adjective	Verb	Adverb
responsible	No	Yes	No	No
responsibility	Yes	No	No	No

responsible (noun)	responsibility (noun)
	the social force that binds you to the courses of action demanded by that force
	a form of trustworthiness; the trait of being answerable to someone for something or being responsible for one's conduct
	the proper sphere or extent of your activities

responsible (adjective)	responsibility (adjective)
worthy of or requiring responsibility or trust; or held accountable
being the agent or cause
having an acceptable credit rating