Trying to think in terms of plans and objectives was proving utterly frustrating.

But the calls have proved more frustrating than fruitful, she said.

But the call proved less frustrating than Kate had expected.

Taking the tenants to court has proved frustrating, lengthy and expensive.

A call to customer service about a high money market rate listed in a newspaper proved frustrating.

His search for another job has proved so frustrating that he said he had given up.

Keep your mind on the war, I'm sure it'll prove much less frustrating!

But too much on this project has proved disruptive and frustrating.

The last couple of years have proved very frustrating.

Using a land line can sometimes prove equally frustrating.