What Does “Behind Somebody’s Back” Mean? (よく使う英語慣用語句） -N0.553-

What Does “Behind Somebody’s Back” Mean?（よく使う英語慣用表現）

Introduction

Have you ever found out that something was done without your knowledge? In English, we often say it was done “behind someone’s back.”

1. What Does “Behind Somebody’s Back” Mean?

To do something “behind somebody’s back” means to do it secretly, without that person knowing, often in a dishonest or unfair way.

2. When to Use It

Use this idiom when someone acts secretly, especially when the action would upset the person if they found out.

Example:
A: Why is she so upset?
B: They changed the plan behind her back.

3. 日本語の同じような表現

日本語では、「（人）の目が届かない所で」「陰で」「内緒で」といった表現が近いです。
本人に知らせず、こっそり何かをする状況を表します。

Conclusion

When something is done secretly without someone knowing, you can say it was done “behind their back.” It’s a common idiom used to describe unfair or dishonest behavior.

---

---