考かんがえ違ちがい

noun

mistaken idea; misunderstanding; wrong impression

Refers to a mistaken belief or assumption about something, often used when someone realizes they were wrong.

• それは君きみの考かんがえ違ちがいだ。

  That's your misunderstanding.

• 彼かれは私わたしのことを怒おこっていると思おもったが、それは考かんがえ違ちがいだった。

  I thought he was angry with me, but that was a mistaken idea.