盗ぬすみ読よみ

noun, noun or participle which takes 'suru', transitive verb

surreptitious reading; reading secretly

Reading someone else's private writing (letter, diary, email, etc.) without permission.

• 彼かれは友とも達だちの日にっ記きを盗ぬすみ読よみした。

  He read his friend's diary surreptitiously.

• 人ひとの手て紙がみを盗ぬすみ読よみするのはよくない。

  It's not right to read other people's letters secretly.

noun, noun or participle which takes 'suru', transitive verb

reading over someone's shoulder

Reading what someone nearby is reading (book, screen, etc.) without their knowledge.

• 電でん車しゃで隣となりの人ひとの新しん聞ぶんを盗ぬすみ読よみしてしまった。

  I ended up reading the newspaper over the shoulder of the person next to me on the train.