not for the world

not for the world

For no reason or incentive whatsoever; not for anything. But this watch is a family heirloom—I wouldn't sell it for the world! I wouldn't fly with that airline again for the world!
See also: not, world
Farlex Dictionary of Idioms.

not for (anything in) the world

 and not for love nor money; not on your life
Fig. not for anything (no matter what its value). (Note the variation in the examples. The order of love nor money is fixed.) I won't do it for love nor money. He said he wouldn't do it—not for the world.
See also: not, world
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

not (do something) for (all) the ˈworld

used to say that you would never do something: I wouldn’t sell that picture for all the world.
See also: not, world
Farlex Partner Idioms Dictionary
See also:
  • wouldn't be seen dead in
  • wouldn't be seen dead in (something)
  • wouldn
  • wouldn't be caught dead in (something)
  • melt
  • trust
  • would not be seen dead
  • wouldn't be seen dead
  • wouldn't be seen dead (doing something)
  • (it) wouldn't bother me any