repercussion
//ˌriː.pəˈkʌʃ.ən//
Noun
repercussionSingular
repercussionsPlural
1
An unintended consequence or effect of an action or event, especially an unwelcome one.
The new policy had serious repercussions for small businesses.
2
The recoil or reverberation of something after impact.
The repercussion of the explosion echoed through the valley.