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to miss; to overlook; to fail to notice
to let pass (a matter); to overlook (e.g. a wrongdoing); to turn a blind eye to
to pass up (e.g. an opportunity)
to let (a good ball) go by
些細なミスを見遁すと後で大きな問題になる。
If you overlook a minor mistake, it can become a major problem later.
この好機を見遁すわけにはいかない。
I cannot afford to let this opportunity slip by.
審判が反則を見遁したことに抗議が起きた。
Protests arose because the referee overlooked the foul.