0 something important or unusual that happens suddenly or unexpectedly: --
The resignation of the chairman came like a bolt from the blue.
If war came, as war is likely to come, like a bolt from the blue, what protection have the civil population now?
Now suddenly, like a bolt from the blue, a large slice is to be cut out of my income.
There is no such thing as a war coming like a bolt from the blue.
The fact of that possibility has come as a bolt from the blue.
Such changes are not a bolt from the blue, nor due to world causes.
That militancy stemmed from frustration and the fact that the milk quotas had been introduced like a bolt from the blue.
It is nothing that has come upon us suddenly or as a bolt from the blue.
It cannot be done by a bolt from the blue from heaven.
