Meaning of “out of the blue” in the English Dictionary

british dictionary

"out of the blue" in British English

See all translations

out of the blue

C1 If something happens out of the blue, it is completely unexpected:

One day, out of the blue, she announced that she was leaving.

(Definition of “out of the blue” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"out of the blue" in American English

See all translations

out of the blue

unexpectedly:

My old roommate called me out of the blue.

(Definition of “out of the blue” from the Cambridge Academic Content Dictionary © Cambridge University Press)

Blogs about "out of the blue"

by Kate Woodford,