How to say "interfere" in Japanese

• 差し支えるさしつかえるJLPT N1approx.Common
  ichidan verb, intransitive verbCovers 'interfere with' in the sense of hindering or impeding something, so that it cannot proceed as it should; the emphasis is on obstruction, not on deliberate meddling in someone's affairs.
• 関わるかかわるJLPT N2approx.Common
  godan verb, intransitive verbIts core meanings are being involved in or concerning oneself with something; it fits 'interfere' only when the word really means getting involved in a matter, not when it means hindering or obstructing.
  新聞しんぶんによれば、彼かれはその陰謀いんぼうに関かかわっていた。↗

  According to the newspaper, he participated in the plot.
• 立ち入るたちいるCommon
  godan verb, intransitive verbCovers 'interfere in' as meddling or prying — intruding into matters, especially someone's private affairs, that are not your concern; the image is stepping into territory you should keep out of.
  警察けいさつは彼かれの生活せいかつに立ち入たちいって調べ上しらべあげた。↗

  The police raked through his life.

Choose 「差し支える」 for the hindering sense of 'interfere with', 「関わる」 when 'interfere' amounts to getting involved or concerning oneself with something, and 「立ち入る」 for meddling in or prying into other people's affairs.

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

• 差し支えるさしつかえるto interfere (with)
• 関わるかかわるto be involved (in)
• 話の腰を折るはなしのこしをおるto interfere
• 邪魔を入れるじゃまをいれるto interfere
• 口を出すくちをだすto interrupt
• 嘴を挟むくちばしをはさむto stick one's nose into (someone else's business)
• ちょっかいを出すちょっかいをだすto meddle (in someone's affairs)
• ちょっかいをかけるto meddle (in someone's affairs)
• くちばしを入れるくちばしをいれるto meddle (e.g. in a conversation)
• とやかく言うとやかくいうto say this and that (about)
• 立ち入るたちいるto meddle (in)
• 世話を焼くせわをやくto give help where it isn't wanted