From Longman Dictionary of Contemporary Englishnot for the worldnot for the worldNOTused to emphasize that you would not do something I wouldn’t hurt her for the world. I wouldn’t have missed it for the world. → world
Examples from the Corpus
not for the world• I wouldn't hurt Amy for the world.• Rescripts were often penned for a case, and not for the world at large.• Gentlemen, I would not for the world be judge in a cause in which I am one party among three.• I would not for the world keep him from his rest. 