背はい信しん行こう為い

noun

breach of faith; breach of trust; act of disloyalty

A formal or serious term for violating trust, loyalty, or a fiduciary duty. Often used in legal, business, or political contexts.

• 彼かれの背はい信しん行こう為いは会かい社しゃに大おおきな損そん害がいを与あたえた。

  His breach of trust caused great damage to the company.

• その政せい治じ家かの背はい信しん行こう為いが明あかるみに出でた。

  The politician's act of disloyalty came to light.