inattention

noun

Lack of attention, notice, or regard.

Want of attention; failure to fix the mind attentively on an object or a subject; heedlessness; negligence.

An act of neglect; failure of courtesy.

Lack of attention, or failure to pay attention; disregard; heedlessness; neglect.

Want of attention, or failure to pay attention; disregard; heedlessness; neglect.