a bolt from/out of the blue Definition in the Cambridge English Dictionary
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Definition of “a bolt from/out of the blue” - English Dictionary

Definition of "a bolt from/out of the blue" - British English Dictionary

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a bolt from/out of the blue

something ​completelyunexpected that ​surprises you very much: The ​news of his ​marriage was a bolt from the ​blue.
(Definition of a bolt from/out of the blue from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Translations of “a bolt from/out of the blue”
in Chinese (Simplified) 出人意料的事情, 睛天霹雳…
in Chinese (Traditional) 出人意料的事情, 睛天霹靂…
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