Their structure, powers, methods of procedure, which were never in any measure fixed, have now become wholly a vague possibility.

Too long to brood and worry about vague possibilities.

Time check: still within the realm of vague possibility.

No, she probably just put It down to vague romantic possibilities.

So far, it's only a thought, a hope, a vague possibility.

In fact, he once mentioned a vague possibility of photography - with Father's permission, of course.

At times I have crossed the street or made a detour so as not to confront a vague possibility of danger.

Some vague possibility that there could be a major botch-up.

Not that there was going to be, of course, but it remained a vague possibility.