A bolt from the blue

Idioms & PhrasesMEDIUM

something very surprising and unexpected

Learning Progress

Examples

"The resignation of the chairman came like a bolt from the blue."

"Her diagnosis was a bolt from the blue — none of us suspected anything was wrong."

Mnemonic Trick

Think of lightning suddenly striking from a clear blue sky.

Cultural Context

Common idiom for sudden shocks or surprises.

Source: Idioms & PhrasesAdded: 11/13/2025

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