Out of the blue (idiom)
|Look up out of the blue in Wiktionary, the free dictionary.|
"Out of the blue" is an informal English language idiom that describes an event that occurs unexpectedly, without any warning or preparation. It is used as an adverb. The "blue" in the phrase refers to the sky, one from which a sudden thunderstorm is unexpected.
Longer and more explicit variations include out of the clear blue sky and out of a clear blue sky in addition to "out of the duck".
- Pocket English Idioms: "Out Of The Blue" from GoEnglish.com
- Oxford Dictionary of Idioms. p. 31.
|This vocabulary-related article is a stub. You can help Wikipedia by expanding it.|