The irresponsible driver caused a serious accident
It was irresponsible of him to leave the children unattended
The company was criticized for its irresponsible environmental practices
She felt that the government's policies were irresponsible
His irresponsible behavior cost him his job
Did you finish the project report?
No, I didn't. It was very difficult.
That's irresponsible; the deadline was today.
He acted without regard for the consequences of his actions
His actions demonstrated a lack of responsibility for others