vague expression

She was staring past me, a vague expression in her eyes.

What you've heard are vague expressions of credibility and hope.

"As 'this sort of thing' is rather a vague expression, would you kindly explain?"

She had a mild, vague expression which didn't suit her.

Suddenly, vague expressions of support for universal health care weren't enough: candidates were under pressure to present their own specific plans.

The vague expression of it is sufficient for our purposes.

She was looking at him with a vague expression of contempt.

And the vague expression was back on his face.

That is not just a vague general expression of hope.

The judge said evenly: "A minute or two is a vague expression."