He won't have the faintest inkling until the moment you start acting.
"Have you the faintest inkling of what you are doing?"
I've given him strict instructions that if he gets the faintest inkling of being rumbled he's to cut and run.
There will be public issues of which there now is not the faintest inkling.
She had not had the faintest inkling that Sharibor was a plant.
And it wasn't until then that I found the first faint inkling.
His life, as he knew it, was over, and he had not even the faintest inkling of what would lie beyond.
I had at the time not the faintest inkling as to its nature, but there it was.
And our gerbils, six blocks north, would never have the faintest inkling of it.
I haven't the faintest inkling of what it's all about.