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")
Idiom
Informal
Exempel
The company's policies have been effective for years, so it's wise to let well alone and not introduce unnecessary changes.
