responsibility vs irresponsibility

responsibility and irresponsibility both are nouns.

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

responsibility (noun)	irresponsibility (noun)
the social force that binds you to the courses of action demanded by that force	a form of untrustworthiness; the trait of lacking a sense of responsibility and not feeling accountable for your actions
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