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out of the blue

phrase

: without advance notice : unexpectedly
the job offer came out of the blue

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out of sync
out of the blue
out of the chute
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Cite this Entry

“Out of the blue.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/out%20of%20the%20blue. Accessed 17 Dec. 2025.

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Last Updated: - Definition revised
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