(noun) The act of neglecting.
"Don't neglect yourself taking care of someone else. You don't owe anyone your time, a quick text back, or emotional support when you need to be giving it to yourself first."
"I'd rather miss you in your absence then neglect in your presence."
"The art of war is of vital importance to the State. It is a matter of life and death, a road either to safety or to ruin. Hence it is a subject of inquiry which can on no account be neglected."