The phrase "unavoidable conclusion" means a decision or understanding that cannot be avoided or escaped because it is the only logical or evident outcome. Full definition
Near - verbatim repetition among the synoptic Gospels of Matthew, Mark and Luke makes unavoidable the conclusion that at least one of them functioned as a written source for at least one of the others. (religion-online.org)
Using these ingredients, plus some basic physical principles, Einstein came to mind - boggling yet unavoidable conclusions that overturned all of physics. (discovermagazine.com)
«A thing is God's will because it is good: that is the unavoidable conclusion.» (firstthings.com)