Meanings
Short for out of the blue sky, likening an unexpected event to lightning or rain coming suddenly from a cloudless sky.
How to pronounce "out of the blue":
AU
unexpectedly; without warning or preparation.
Example Sentences
1
I haven't heard from him in years, but out of the blue, he called me yesterday.
2
The promotion came out of the blue; I wasn't expecting it at all.
3
She walked into the room out of the blue and startled everyone.
4
I was feeling sad, and then out of the blue, my friend surprised me with a gift.
5
He asked her to marry him out of the blue, and she was completely taken aback.
