喪失|そうしつsoushitsu[0]heiban (flat)

Common
Definitions
  1. noun, suru verb, transitive verbloss; forfeit
    水不足みずぶそくは森林しんりんの喪失そうしつによって起おこる。↗
    Water shortage is caused by the loss of forests.
Conjugation
Dictionary form喪失する(そうしつする)
Polite (masu)喪失します(そうしつします)
Negative (nai)喪失しない(そうしつしない)
polite (masen)喪失しません(そうしつしません)
classical zu / nu喪失せず・喪失せぬ(そうしつせず・そうしつせぬ)
Past (ta)喪失した(そうしつした)
polite (mashita)喪失しました(そうしつしました)
Past negative (nakatta)喪失しなかった(そうしつしなかった)
polite (masen deshita)喪失しませんでした(そうしつしませんでした)
Te form喪失して(そうしつして)
Potential喪失できる(そうしつできる)
Passive喪失される(そうしつされる)
Causative喪失させる(そうしつさせる)
Causative passive喪失させられる(そうしつさせられる)
Conditional (ba)喪失すれば(そうしつすれば)
tara喪失したら(そうしつしたら)
Volitional喪失しよう(そうしつしよう)
polite (mashou)喪失しましょう(そうしつしましょう)
Imperative喪失しろ(そうしつしろ)

Common forms generated by rule; see the senses for honorific or irregular usage.

Synonyms & antonyms
  • Synonym失ううしなうNeutralThe most common verb for losing: things, chances, loved ones. 「喪失」 is a written, Chinese-style noun used mostly for abstract things, as in 「記憶喪失」.
  • SynonymロスNeutralLoanword for loss or waste, also a feeling of loss, as in 「ペットロス」. More colloquial than 「喪失」.
  • Synonym失するしっするWrittenWritten/formal prose: to lose propriety or an opportunity, as in 「礼を失する」; also to be excessive, as in 「遅きに失する」.
  • Synonym失墜しっついWrittenWritten/formal prose, reserved for prestige, trust or status crashing down; 「喪失」 applies to all sorts of things.
  • SynonymなくすNeutralThe everyday word for losing things or eliminating them. 「喪失」 is more written and mostly for abilities or qualifications.
  • Related遺失いしつWrittenWritten/formal prose: losing money or valuables; common in official terms like 「遺失物」. 「喪失」 typically covers abstract things such as abilities or qualifications.
  • Related紛失ふんしつNeutralFor objects that go missing; rather formal, common in official reports. 「喪失」 is mostly for abstract things like ability or memory.
  • Related落とすおとすNeutralTo drop or lose something, with many other senses (lowering, removing). 「財布を落とす」 is the everyday way to say you lost your wallet.
  • Related逸するいっするWrittenWritten/formal prose: to miss a chance, or to deviate from the norm, as in 「常軌を逸する」.
  • Related見失うみうしなうNeutralTo lose sight of something, or figuratively lose your bearings, as in 「自分を見失う」. 「喪失」 is losing something you once had.
  • Related損失そんしつNeutralLoss of assets or profit, or of something precious; stresses the extent of the damage suffered.
  • Related亡失ぼうしつWrittenRare written term used in law and official documents for lost items; in everyday speech say 「紛失」.
  • Related損亡そんもうWrittenAntiquated written term for financial or material loss; 「損失」 is what people say today.
  • Related無くなすなくなすNeutralA dialectal or old-fashioned variant of 「無くす」; rare. Use 「無くす」 instead.
  • Related落っことすおっことすCasualColloquial form of 「落とす」 for accidentally dropping or losing something; casual in tone.
  • Antonym獲得かくとくNeutralAntonym: to gain items or rights through effort; the opposite of the loss expressed by 「喪失」.
  • Antonym保持ほじNeutralAntonym: to keep holding on to something, as in 「記録保持」; the opposite of 「喪失」.

For losing everyday objects, say 「無くす」 or 「落とす」; in formal situations such as reports, use 「紛失」. 「喪失」 itself is for losing abstract things: ability, memory, qualifications. For prestige or trust collapsing, 「失墜」; for financial loss, 「損失」. 「失う」 is the all-purpose verb. The rest are rare or specialized: 「遺失」「亡失」「損亡」 in official prose, 「逸する」「失する」 in formal writing, 「ロス」 for a sense of loss, 「見失う」 for losing sight of something, 「無くなす」 and 「落っことす」 as colloquial or regional variants. Antonyms: 「獲得」, 「保持」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese definitions
  1. 失うしなうこと。
Kanji in this word
English equivalents
See also

Say it right, write it right

Core lookup works fully offline, with cloud pronunciation and one-tap save & review. Free, no sign-up.

Free downloadWindowsFree downloadmacOSDownload on the App StoreGet it on Google Play
MobileiOS / Android

Android

QR code for the Google Play pageGet it on Google Play

Scan it with your Android phone to install, or search for “Tomoshi” on Google Play.

iOS

QR code for the App Store pageDownload on the App Store

Scan it with your iPhone camera to install, or search for “Tomoshi” in the App Store.

Install the browser extensionLook words up on any web page · Chrome / Edge / Safari

Screenshot of a Tomoshi lookup resultScreenshot of Tomoshi lookup results on a phone

Windows macOS Chrome / Edge / Safari extension iOS / Android