"It was unannounced, unprovoked, completely out of the blue".
"We had to add an extra performance that sold out right away, even though it was unannounced.
When it does arrive, it is unannounced; it creeps in silently and straps itself in for the long haul.
Nick Turner, An's former boss at Reuters, confirmed his suspicions about An's unannounced absences from the office.
What is going to convince me is if there is an out-of-competition test that's unannounced.
But as the Volt's launch quickly approaches — it's still unannounced, but I would bet the farm on November 11 — GM has nothing left to hide.
There will be another in the spring, it says, and this one will be "unannounced".
In one letter, Mark Goucher, an EA customer services operator, says that all of its eight sampling visits "have been unannounced".
Some of Russia's largest exercises in recent years have been unannounced and involved tens of thousands of troops.
There are multiple, frequent breaks which are unannounced in the arena, with the only indication it's an ad break being the lights, which are dimmed.
