responsible vs responsibleness

responsible is not a noun while responsibleness is a noun.

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

responsible (noun)	responsibleness (noun)
	a form of trustworthiness; the trait of being answerable to someone for something or being responsible for one's conduct

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