妊娠|にんしんninshin[0]heiban (flat)

JLPT N1approx.Common
Definitions
  1. noun, suru verb, intransitive verbpregnancy; conception; gestation
    I'd like to get a pregnancy test.
Conjugation
Dictionary form妊娠する(にんしんする)
Polite (masu)妊娠します(にんしんします)
Negative (nai)妊娠しない(にんしんしない)
polite (masen)妊娠しません(にんしんしません)
classical zu / nu妊娠せず・妊娠せぬ(にんしんせず・にんしんせぬ)
Past (ta)妊娠した(にんしんした)
polite (mashita)妊娠しました(にんしんしました)
Past negative (nakatta)妊娠しなかった(にんしんしなかった)
polite (masen deshita)妊娠しませんでした(にんしんしませんでした)
Te form妊娠して(にんしんして)
Potential妊娠できる(にんしんできる)
Passive妊娠される(にんしんされる)
Causative妊娠させる(にんしんさせる)
Causative passive妊娠させられる(にんしんさせられる)
Conditional (ba)妊娠すれば(にんしんすれば)
tara妊娠したら(にんしんしたら)
Volitional妊娠しよう(にんしんしよう)
polite (mashou)妊娠しましょう(にんしんしましょう)
Imperative妊娠しろ(にんしんしろ)

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

Synonyms & antonyms
  • Synonym懐妊かいにんWrittenWritten/formal word for becoming pregnant; not honorific by itself, but with 「ご」 it becomes 「ご懐妊」, often used of royalty and the nobility. 「妊娠」 is the general term.
  • Synonym受胎じゅたいWrittenWritten/formal term for conception, also covering pregnancy itself; found mainly in medical and biological writing. 「妊娠」 is the common everyday word.
  • Synonym懐胎かいたいWrittenWritten/formal word for being with child, found mostly in religious and classical texts, as in 「処女懐胎」.
  • RelatedおめでたCasualColloquial euphemism for a happy event such as a pregnancy or birth, as in 「おめでたです」; 「妊娠」 is the direct, medical way to say it.
  • Antonym非妊娠WrittenWritten/formal negative form meaning not pregnant; it stands opposite to 「妊娠」 with respect to whether one is pregnant.

Use 「妊娠」 for pregnancy in medical and everyday contexts. For a euphemistic happy event say 「おめでた」; for a formal honorific tone use 「ご懐妊」; for conception in medical/biological writing use 「受胎」; 「懐胎」 suits religious or classical texts; 「非妊娠」 means not pregnant.

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

Japanese definitions
  1. 体内たいないに胎児たいじを宿やどすこと。受精卵じゅせいらんが着床ちゃくしょうしてから分娩ぶんべん(出産しゅっさんまたは死産しざん)するまでの状態じょうたい。
  2. コンデンサーや電池パックでんちぱっくなどが膨張ぼうちょうすること。
Kanji in this word
English equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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