ALL meanings of water under the bridge
wa·ter un·der the bridge
W w - phrase water under the bridge If you say that an event or incident is water under the bridge, you mean that it has happened and cannot now be changed, so there is no point in worrying about it any more. 0
- noun water under the bridge events that are past and done with 0
- noun water under the bridge something not worth reexamining because it is in the past and finished 0