The phrase "irresistible force" refers to a power or strength that cannot be stopped or resisted. It describes something so strong that it overpowers anything in its path and cannot be hindered or stopped. Full definition
Given the seemingly irresistible forces lined up against it, it would not be unreasonable to assume that the meat sector is facing a future that is bleak at best. (foodprocessing-technology.com)
They who scorn the idea of the judges as a logical automation are apt to follow into the opposite effort as exaggerating as irresistible the force of bias or prejudice. (slaw.ca)
And here is one of those «irresistible force meet immovable object» moments in ecodesign. (treehugger.com)