Inattention

Slight inattention can cause a great disaster.

Most car accidents occur due to the inattention of the driver.

Tom's inattention at the wheel cost him his life.

We make a lot of mistakes out of inattention.

I do not wish to recall this bad time nor the worse that ante-dated my departure, when I was at the mercy of venal doctors and indifferent nurses, dependent on grudged bad service and overpaid inattention, taking a so-called rest cure.