ミステイク

noun

mistake; error; blunder

A loanword from English, used in casual contexts to refer to an error or slip-up. Often carries a slightly softer or more colloquial tone than native words like 間違い.

• それは単たんなるミステイクだった。

  That was just a mistake.

• 彼かれはミステイクを認みとめた。

  He admitted his mistake.