0 something important or unusual that happens suddenly or unexpectedly:
The resignation of the chairman came like a bolt from the blue.
It was 'not a bolt from the blue' (chapter 3).
Compare it with a bolt from the blue.
It was a bolt from the blue and in this case it affects me.
I do not think hostilities have ever been begun except by something rather approaching a bolt from the blue.
This latest development came to many of us who are concerned about the problem as a bolt from the blue.
That came like a bolt from the blue.
How is it that this came upon us like a bolt from the blue?
It cannot be done by a bolt from the blue from heaven.
