And yet, it opened a range of sinister possibilities in my imagination.

And worst of all, this message raises sinister new possibilities just when I thought our purpose near Buenos Aires had collapsed.

Other first-aid supplies hinted at more sinister possibilities.

Another, more sinister possibility, is that the attackers lay in wait for him.

While this technique holds some promise for people who have suffered serious facial disfiguring, its sinister possibilities are unmistakable.

Then he added, "But you can't rule out suspicious and sinister possibilities."

But that sinister possibility seemed not to have occurred to Miss Willison.

That was a sinister possibility that hadn't occurred to me, and I felt as though a cold hand had been laid on the back of my neck.

The Trouts did not comment on the explanation, but as they drove back to the rooming house, their conversation dwelt on more sinister possibilities.

Yet two nights later another affair, pregnant with uncertainties and sinister possibilities, resulted in his having to do so.