out of the blue

Idioms  

1. see out of a clear blue sky.

---

Example Sentences

Mary Harris: Let’s talk about the lead-up to what’s happening now, because as you said in your reporting, this didn’t come out of the blue.

From Slate • Mar. 2, 2026

The drop this week isn’t completely out of the blue.

From The Wall Street Journal • Feb. 4, 2026

But it isn’t a bolt out of the blue.

From Barron's • Dec. 22, 2025

"It started with a text out of the blue asking if I recognised a transaction - yes or no. Two and half hours later I was out of pocket by £1400."

From BBC • Nov. 29, 2025

‘Tour daughter,” Nazario asked him out of the blue, “did she get in?”

From "Bodega Dreams" by Ernesto Quinonez