自決|じけつjiketsu[0]heiban (flat)

Common
Definitions
  1. noun, suru verb, intransitive verbself-determination
  2. noun, suru verb, intransitive verbsuicide
Conjugation
Dictionary form自決する(じけつする)
Polite (masu)自決します(じけつします)
Negative (nai)自決しない(じけつしない)
polite (masen)自決しません(じけつしません)
classical zu / nu自決せず・自決せぬ(じけつせず・じけつせぬ)
Past (ta)自決した(じけつした)
polite (mashita)自決しました(じけつしました)
Past negative (nakatta)自決しなかった(じけつしなかった)
polite (masen deshita)自決しませんでした(じけつしませんでした)
Te form自決して(じけつして)
Potential自決できる(じけつできる)
Passive自決される(じけつされる)
Causative自決させる(じけつさせる)
Causative passive自決させられる(じけつさせられる)
Conditional (ba)自決すれば(じけつすれば)
tara自決したら(じけつしたら)
Volitional自決しよう(じけつしよう)
polite (mashou)自決しましょう(じけつしましょう)
Imperative自決しろ(じけつしろ)

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

Synonyms & antonyms
  • Synonym自害じがいWrittenWritten word for dying by wounding oneself with a blade or the like; carries a samurai seppuku flavor.
  • Related自殺じさつNeutralThe most common everyday word for suicide, neutral and objective; 「自決」 carries the nuance of dying for honor or to take responsibility.
  • Related自尽じじんWrittenWritten word for suicide; rarer than 「自殺」, and it only covers the suicide sense of 「自決」, never self-determination.
  • Antonym他殺たさつNeutralAntonym: being killed by another person; contrasts with 「自決」, where one ends one's own life by one's own decision.

Use 「自決」 for deciding one's own affairs oneself, or for taking one's own life to accept responsibility, as in 「民族自決」「集団自決」. For suicide in general say 「自殺」; for a samurai-style death 「自害」; the antonym is 「他殺」.

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

Japanese definitions
  1. 自分じぶん(自分じぶんたち)のことは自分じぶん(自分じぶんたち)で決きめること。
  2. 自みずから決断けつだんして自殺じさつすること。
Kanji in this word
English equivalents
See also

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