What is another word for out of the clear blue sky?
Pronunciation: [ˌa͡ʊtəv ðə klˈi͡ə blˈuː skˈa͡ɪ] (IPA) 
The phrase "out of the clear blue sky" is often used to describe something unexpected or sudden. There are several synonyms for this phrase that can be used in various contexts. "Out of nowhere," "out of thin air," and "out of the blue" are all commonly used expressions that convey a sense of surprise or shock. "Unexpectedly," "abruptly," and "without warning" are other terms that can be used to describe something that comes out of the clear blue sky. Whatever the context may be, there are several ways to describe something that is unexpected or catches us off guard.
