未み開かい封ふう

noun which may take the genitive case particle 'no', noun

unopened; sealed

Describes an item that has not been opened and still has its original seal intact, such as a package, envelope, or product.

• 未み開かい封ふうの封ふう筒とうが机つくえの上うえに置おいてあった。

  An unopened envelope was on the desk.

• この商しょう品ひんは未み開かい封ふうのまま返へん品ぴんしてください。

  Please return this product unopened.