Out of the blue

Pronunciation: /ˈaʊt ˈəv ˈðə ˈbɫu/

Out of the blue (phrase)

  1. Happening suddenly, with no warning or reason beforehand.
  2. Coming as a surprise, not connected to what happened before.

Examples

  • She called me out of the blue, and I was surprised.
  • The news arrived out of the blue, and everyone froze.