To start later or arrive later than others; to be late getting started or fall behind (often causing a disadvantage).
渋滞で電車に乗り遅れて、会議に出遅れてしまった。
I missed the train because of traffic and ended up being late for the meeting.
セールに出遅れて、欲しかった服はもう売り切れていた。
I was late for the sale and the clothes I wanted were already sold out.
テスト勉強を昨日から始めたら、クラスの多くの人に出遅れるよ。
If you only start studying for the test from yesterday, you'll fall behind many people in the class.
駅で寝坊して出遅れると、その日の予定が全部狂うことがある。
If you oversleep and are late leaving the station, your whole schedule for the day can get messed up.