to leave well alone
01
to not try to interfere or make changes in a situation or with something that is already functioning satisfactorily to avoid causing unnecessary problems
![to [leave|let] well alone definition and meaning](https://cdn.langeek.co/photo/46655/original/?type=jpeg "to [leave|let] well alone definition and meaning")
慣用句
くだけた
例
The old website is not perfect, but it works, so let's leave well alone.
