不倫|ふりんfurin[0]heiban (flat)

Common
Definitions
  1. suru verb, intransitive verb, na-adjective, no-adjectiveadultery; impropriety; (an) affair; immorality
    隣となりの人ひとが若わかい女おんなの人ひとと不倫ふりんしているらしいよ。↗
    Did you hear that our neighbor was fooling around with a younger woman?
Conjugation
Dictionary form不倫する(ふりんする)
Polite (masu)不倫します(ふりんします)
Negative (nai)不倫しない(ふりんしない)
polite (masen)不倫しません(ふりんしません)
classical zu / nu不倫せず・不倫せぬ(ふりんせず・ふりんせぬ)
Past (ta)不倫した(ふりんした)
polite (mashita)不倫しました(ふりんしました)
Past negative (nakatta)不倫しなかった(ふりんしなかった)
polite (masen deshita)不倫しませんでした(ふりんしませんでした)
Te form不倫して(ふりんして)
Potential不倫できる(ふりんできる)
Passive不倫される(ふりんされる)
Causative不倫させる(ふりんさせる)
Causative passive不倫させられる(ふりんさせられる)
Conditional (ba)不倫すれば(ふりんすれば)
tara不倫したら(ふりんしたら)
Volitional不倫しよう(ふりんしよう)
polite (mashou)不倫しましょう(ふりんしましょう)
Imperative不倫しろ(ふりんしろ)

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

Synonyms & antonyms
  • Synonym浮気うわきNeutralCheating or fooling around; colloquial, and not limited to married people — lovers use it too. 「不倫」 usually means an extramarital affair and carries a heavier tone.
  • Antonym貞節ていせつWrittenChastity and fidelity; a written, formal word standing opposite to 「不倫」 in its sense of extramarital affairs.

For an extramarital affair, 「不倫」 is the usual word, as in 「不倫が発覚する」; it originally means a breach of ethics. For a lover straying or cheating, use 「浮気」. 「貞節」, a formal written word for chastity, is its opposite.

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

Japanese definitions
  1. 道徳どうとくに反はんすること。
  2. 特とくに男女だんじょが配偶者はいぐうしゃ以外いがいの異性いせいと関係かんけいを持もつこと。
  3. 道徳どうとくに反はんするさま。
Kanji in this word
English equivalents

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