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背信行為 (haishinkoui) Japanese meaning: breach of faith | Kotomora

背はい信しん行こう為い

は

い

し

ん

こ

う

い

Meanings

1

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.

Kanji

背stature, height, back
信faith, truth, fidelity
行going, journey, carry out
為do, change, make

Related words

裏うら切ぎり
裏切り is a more common, everyday word for betrayal or treachery, while 背信行為 is a formal compound emphasizing breach of faith or trust, often in institutional contexts.

Built from

背はい信しん+行こう為い

Etymology

Compound of 背信 (breach of faith) and 行為 (act, conduct). The exact historical derivation is uncertain, but the word follows standard Sino-Japanese compounding patterns.