not long for

Related to not long for: Not Long for this World

not long for

About or likely to depart from (something or some place) soon. I'm sorry to say that Great-Grandma Jean is not long for this world. I think we should all make the trip to see her one last time. If these rumors are to be believed, the president's secretary isn't long for the administration.
See also: long, not
Farlex Dictionary of Idioms.

not long for

Unlikely to remain for much more time in: not long for this world.
See also: long, not
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • not long for this world
  • gritch
  • grouse at
  • grouse at (someone)
  • go to (one's) glory
  • go to glory
  • go out of style
  • go out of fashion
  • evening of life
  • have a long memory