noun
inattentive listening; half-listening; not paying full attention
Describes the state of hearing something without really listening or absorbing it; often implies distraction or lack of focus.
会議中、生聞きで重要なポイントを聞き逃した。
During the meeting, I was half-listening and missed the important points.
彼の話を生聞きしていたら、後で困ったことになった。
I was only half-listening to his story, and it caused trouble later.