when (one) is least expecting it

when (one) is least expecting it

At the point in time at which one is least prepared or has not been anticipating (something). Things seemed to be going well, and then, when I was least expecting it, my boss said that I was being fired. We will organize our forces and strike the enemy when they are least expecting it.
See also: expect, least
Farlex Dictionary of Idioms.
See also:
  • when (one) least expects it
  • when least expected
  • least
  • take the path of least resistance
  • at least
  • at least so many
  • least of all
  • at the very worst
  • at the worst
  • at worst