純正(じゅんせい)

じゅんせい
noun
genuine; pure; authentic
1. genuine; authentic; official (of products or parts)
Describes products made by the original manufacturer, as opposed to third-party or counterfeit items.
純正(じゅんせい)品(ひん)を使(つか)ってください。
Please use genuine parts.
このインク(いんく)は純正(じゅんせい)ですか。
Is this ink an official product?
純正(じゅんせい)部品(ぶひん)は高(たか)いが、互換(ごかん)品(ひん)より長持(ながも)ちする。
Genuine parts are expensive, but they last longer than compatible alternatives.
2. pure; unadulterated; unmixed
Describes something that is free from impurities or foreign elements.
純正(じゅんせい)な律(りつ)で調律(ちょうりつ)する。
To tune in pure intonation.
純正(じゅんせい)律(りつ)と平均(へいきん)律(りつ)の違(ちが)いを聞(き)き分(わ)けるのは難(むずか)しい。
It's hard to hear the difference between just intonation and equal temperament.
この蜂蜜(はちみつ)は純正(じゅんせい)で、混(ま)ぜ物(もの)は一切(いっさい)入(はい)っていない。
This honey is pure, with no additives whatsoever.

Most commonly encountered in consumer contexts (sense 1) when discussing whether a product is the original manufacturer's or a third-party alternative. Functions as a の-adjective when modifying nouns.

COMMON COLLOCATIONS:

  • 純正(じゅんせい)品(ひん): genuine product/part
  • 純正(じゅんせい)部品(ぶひん): genuine parts
  • 純正(じゅんせい)アクセサリー(あくせさりー): official accessories
  • 純正(じゅんせい)律(りつ): just intonation (music)

SIMILAR WORDS:

  • 正規(せいき)品(ひん): authorized product (focuses on the sales channel)
  • 純粋(じゅんすい)な: pure (more for abstract purity — feelings, intentions)
  • 本物(ほんもの): the real thing (more colloquial)
general
Added 2026.4.3 6:23
21500/21689_junsei