亡失

• Reading: ぼうしつ
• Romaji: bōshitsu
• Kanji breakdown: 亡 (bō/mo/na) — die, lose, gone; 失 (shitsu/ushina) — lose, miss, be lost
• Pronunciation: /bo.ː.ɕi.tsɯ/

Meaning

Loss; disappearance; being irretrievably lost. Describes the permanent loss or disappearance of something, especially official documents, rights, or records.

Used as a verbal noun with する (亡失する). More formal and legalistic than simply 失う (to lose) or 紛失 (misplacement). 亡失 carries a sense of irreversibility and official significance — used for the loss of public records, certificates, rights, or entitlements. In legal contexts, rights can 亡失する (lapse or be extinguished).

Examples

1. 書類の亡失により、権利の証明が困難になった。 The loss of the documents made it difficult to prove the rights in question.
2. 大火により、地域の歴史記録の多くが亡失した。 A great fire caused the loss of much of the region's historical records.
3. 証拠書類が亡失していたため、裁判の審理は大幅に遅れた。 Because the evidentiary documents had been lost, the court proceedings were significantly delayed.

Usage Guide

Context: law, administration, official documents, history

Tone: neutral

Origin & History

Compound of 亡 (bō, die, lose, gone) and 失 (shitsu, lose, miss, be lost). Both characters convey loss and disappearance, creating a compound that emphasises permanent and irreversible disappearance — stronger than mere misplacement.

Cultural Context

Era: Modern

Generation: Adults

Social background: Educated