Out-of-the-blue Definition

adverb

(idiomatic) Unexpectedly; without warning or preparation.

After I hadn’t heard from her in six months, she called me out of the blue to meet for lunch.
I really can't understand how something like this could simply pop up out of the blue.
Wiktionary
Synonyms:

Find Similar Words

Find similar words to out-of-the-blue using the buttons below.

Words Starting With

Words Ending With

Unscrambles

out-of-the-blue