From Longman Dictionary of Contemporary Englishforegone conclusionˌforegone conˈclusion noun → be a foregone conclusion
Examples from the Corpus
foregone conclusion• But none of these is a foregone conclusion.• But it is by no means a foregone conclusion.• But gaining that support was not a foregone conclusion.• But is it really a foregone conclusion that all of these young people will turn to crime?• But the outcome of the battle was a foregone conclusion. 