流産|りゅうざんryuuzan[1]atamadaka (head-high)

Common
Definitions
  1. noun, suru verb, intransitive verbmiscarriage; (spontaneous) abortion; abortive birth
    流産りゅうざんはとても辛つらい経験けいけんです。↗
    Miscarriage is a heart-breaking experience.
Conjugation
Dictionary form流産する(りゅうざんする)
Polite (masu)流産します(りゅうざんします)
Negative (nai)流産しない(りゅうざんしない)
polite (masen)流産しません(りゅうざんしません)
classical zu / nu流産せず・流産せぬ(りゅうざんせず・りゅうざんせぬ)
Past (ta)流産した(りゅうざんした)
polite (mashita)流産しました(りゅうざんしました)
Past negative (nakatta)流産しなかった(りゅうざんしなかった)
polite (masen deshita)流産しませんでした(りゅうざんしませんでした)
Te form流産して(りゅうざんして)
Potential流産できる(りゅうざんできる)
Passive流産される(りゅうざんされる)
Causative流産させる(りゅうざんさせる)
Causative passive流産させられる(りゅうざんさせられる)
Conditional (ba)流産すれば(りゅうざんすれば)
tara流産したら(りゅうざんしたら)
Volitional流産しよう(りゅうざんしよう)
polite (mashou)流産しましょう(りゅうざんしましょう)
Imperative流産しろ(りゅうざんしろ)

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

Synonyms & antonyms
  • Synonym自然流産しぜんりゅうざんWrittenWritten medical term for a miscarriage occurring naturally, with no artificial cause; 「流産」 itself can also figuratively describe a plan that comes to nothing.
  • Related死産しざんWrittenWritten term for delivering a fetus that has died, counted in Japan from 12 weeks; cases from 12 to under 22 weeks overlap with 「流産」, so the boundary is not clean.
  • Related堕胎だたいWrittenWritten term for artificially aborting a fetus, carrying legal and ethical overtones; 「流産」 is a natural event.
  • Related中絶ちゅうぜつNeutralNeutral term, common in speech, for an induced abortion; it also means stopping or interrupting something midway, which 「流産」 does not.
  • Related妊娠中絶にんしんちゅうぜつWrittenWritten term for the artificial termination of a pregnancy; 「流産」 by contrast usually means a natural miscarriage.
  • Antonym出産しゅっさんNeutralNeutral word for childbirth or delivery; the direct opposite of 「流産」.
  • Antonym分娩ぶんべんWrittenWritten medical term for the delivery of the fetus; it contrasts with 「流産」 only in the outcome of the birth, and is not a strict antonym.

Use 「流産」 for a pregnancy ending before 22 weeks, or figuratively for a plan that fails, as in 「計画が流産する」. For an induced abortion use 「中絶」; for delivering a fetus that has died, 「死産」; for a normal birth, 「出産」.

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

Japanese definitions
  1. (医学いがく) 妊娠にんしん22週しゅう未満みまんで妊娠にんしんが中断ちゅうだんすること。
  2. 計画けいかくなどが失敗しっぱいして実現じつげんしないこと。
Kanji in this word
English equivalents

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