The act of overlooking or missing something; failing to notice or to catch an opportunity. Also used in compounds like 'missed broadcast' (見逃し配信).
大事なポイントを見逃しがちなので、メモを取ったほうがいい。
You tend to miss important points, so it's better to take notes.
ドラマの見逃し配信を翌日チェックした。
I checked the missed broadcast (on-demand) of the drama the next day.
監督は選手の見逃しを指摘した。
The coach pointed out the player's oversight.
In baseball, letting a (strike) pitch go by without swinging; as in 'looking strikeout' (見逃し三振).
あの球は速球だったが、打者は見逃し三振になった。
That pitch was a fastball, but the batter took it and struck out looking.
審判の判定で見逃しがストライクになった。
The umpire ruled the looking pitch a strike.