like a bolt from the blue

like a bolt from the blue

Unexpectedly or surprisingly. We always thought of Michael as a life-long bachelor, so it certainly was like a bolt from the blue when he returned from his vacation sporting a wedding ring!
See also: blue, bolt, like
Farlex Dictionary of Idioms.
See also:
  • like a bolt out of the blue
  • bolt from the blue
  • bolt from the blue, a
  • a bolt from the blue
  • bolt down
  • a dark horse
  • sat
  • make a bolt for
  • make a bolt for (someone or something)
  • a cold shower