I have heard those members who expressed frustration at being on the outside and looking in.

Perhaps just as important, it is one of the few ways for parents to express their frustration.

They express frustration that the question has not yet been decided.

The writer did and expressed his frustration about the company.

Administration officials expressed frustration at the failure to get the bill passed.

For weeks, they have expressed frustration over the news coverage of the race.

The lawyers were not the only ones expressing their frustration with the case today.

He also expressed his frustration over the drama in the house.

The child may not yet have the skills to express anger and frustration in other ways.

Some members have expressed frustration that a government has still not been formed.