Translation guide
The concept of incest in Japanese is expressed through specific terms, but it is a sensitive topic. The most common word is 近親相姦, though euphemisms and indirect expressions are often used.
To refer to incest in a general, often clinical or legal sense.
The standard term for incest, used in formal, legal, and medical contexts. It literally means 'sexual intercourse between close relatives'.
近親相姦は多くの国で法律で禁止されている。
Incest is prohibited by law in many countries.
Loanword from English, used in psychological or sociological discussions, or in reference to Western contexts.
インセスト・タブーは人類学の重要なテーマだ。
The incest taboo is an important theme in anthropology.
A more technical term emphasizing blood relation, rarely used outside legal documents.
血族相姦は法律で厳しく罰せられる。
Incest between blood relatives is severely punished by law.
To refer to incest indirectly or euphemistically, often in personal or narrative contexts.
A euphemistic phrase meaning 'sexual relationship with a close relative'. It is less direct than 近親相姦 and can be used in counseling or sensitive discussions.
彼女は近親者との性的関係についてカウンセリングを受けた。
She received counseling about a sexual relationship with a close relative.
Means 'sexual abuse within the family'. Used when the incest involves abuse, especially of minors.
家族内の性的虐待は深刻な問題だ。
Sexual abuse within the family is a serious problem.
Literally 'forbidden relationship', a euphemism that can imply incest without stating it directly. Used in literary or dramatic contexts.
その小説は禁忌の関係を描いている。
That novel depicts a forbidden relationship.
To discuss incest as a plot element in stories, anime, manga, etc.
A colloquial term for a genre of fiction (especially manga, anime, or games) that features incestuous relationships. The suffix もの means 'stuff' or 'genre'.
最近、近親相姦ものを扱ったアニメが増えている。
Recently, anime dealing with incest themes have been increasing.
Specifically refers to stories about incest between siblings. Often used in otaku culture.
このゲームは兄妹もののシナリオがある。
This game has a sibling incest scenario.
Incest is a highly sensitive and often taboo subject in Japan, as in many cultures. Direct terms like 近親相姦 can be shocking or clinical. In casual conversation, euphemisms or indirect language are preferred unless the context is explicitly academic or legal.
近親相姦 is the native Japanese term and is more common in legal and formal contexts. インセスト is a loanword often used in academic or Western-centric discussions. In everyday speech, neither is common; people tend to use descriptive phrases.