Though such warning messages might look terrifyingly real, they will eventually feature an audio message explaining that this is just a test.

Take Sharon, who is terrifyingly real.

It's an unlikely scenario - probably even an offensive one to some - but it's a premise made terrifyingly real by a hugely talented writer.

The novel's premise is "made terrifyingly real by a hugely talented writer," Anthony Bourdain wrote here last year.

Could an apparition be as solid as this walking dead man, as convincingly and terrifyingly real as he was?

It was a hell, terrifyingly real.

There is also a constant, nagging fear of a chemical attack, which for a few moments on Friday seemed terrifyingly real.

The panic that held her in its grip all night gained momentum and became suddenly, terrifyingly real.

At first glance, the squirrel looks terrifyingly real.

They are to the onlooker; to the victim they are terrifyingly real.