"There was an impenetrable barrier between me and them," she writes.

Yet some people seem to learn to live with imperfection and others find it an impenetrable barrier.

Even higher now, it formed an impenetrable barrier between himself and the lost army somewhere to the south.

Now the young branches grow over the old to make an impenetrable barrier.

This increasing hostility created an impenetrable barrier between the two sides.

Each alone might be enough to stop him from taking what he so deeply desired, together they were very nearly an impenetrable barrier.

The wood stretched for several miles in both directions, and seemed to form an impenetrable barrier.

She went down the steps and was met by an impenetrable barrier.

Down below, under the almost impenetrable barrier of leaves, people were moving.

Though it can protect you from the elements, your home is not an impenetrable barrier.