inattention

[ in-uh-ten-shuh n ]
/ ˌɪn əˈtɛn ʃən /

noun

lack of attention; negligence.
an act of neglect.

Origin of inattention

First recorded in 1700–10; in-3 + attention
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for inattention