His careless driving caused a serious accident on the highway.
She was too careless to check the date.
She is too careless to read instructions.
We were too careless to back up the data.
They were too careless to notice the sign.
I am too careless to notice small mistakes.
They are too careless to follow safety rules.
We are too careless to keep track of expenses.
She is shocked at how careless the mistake was.
I suppose I can be a bit careless at times though.
It was careless of me to leave my phone on the table.
