The character or state of being irresponsible; lack of or freedom from responsibility; want of accountability.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "irresponsibility" in a sentence
"Wakefield was displeased with me for what he called my irresponsibility in disappearing for over half an hour at such a time."
"Church leaders condemn what they call the irresponsibility of officials at the state-run company that imported the food, calling the scandal "a sin that Heaven is crying over.""
"Second, I think the irresponsibility is heightened when the editing occurs in the last formally authorized submission before conference."