先せん非ぴ

noun

past misdeed; past error; past folly; past sin

Rare, literary noun referring to a past wrongdoing, mistake, or foolish act. Often used in reflective or moral contexts.

• 彼かれは先せん非ぴを悔くいて、心こころを入いれ替かえた。

  He repented of his past misdeeds and turned over a new leaf.

• 先せん非ぴを改あらためることが大たい切せつだ。

  It is important to correct one's past errors.