It was as if they did not trust the impregnability of their own position.

I'd seen the inside of these places before, and I had a healthy respect for their impregnability.

The main reason for this is the impregnability of Catholic principles.

In Thomas the focus of the verse is on the city's security and impregnability rather than its symbolism.

This battle gave the fort a reputation for impregnability that had an effect on future military operations in the area.

However, by early 1916, its much-vaunted impregnability had been seriously weakened.

There's no such thing as impregnability, given time.

- that Eliot died "comforted by the impregnability of his reputation."

So much for the impregnability of this marvelous Roof!"

It is a measure of his mental impregnability.

Beyond them at the end of the avenue stands the Castle, a model of medieval impregnability.

There had been no slackness, no loophole in the College impregnability.

We have lost our illusion of impregnability.

She has the strength and impregnability of a diplodocus.

The impregnability of their silence is important.

"Just kept telling Leon how important I thought it was to ensure total impregnability.

Because we have enjoyed our impregnability for such a long time, we came to take it for granted.

Moreover, its very impregnability made it vulnerable.

Carfilhiot must now trust his life to the impregnability of his castle.

This isn't about the impregnability of the United States Supreme Court.

This is where the impregnability of Predjama Castle was truly put to the test.

The castle's great glory - its massive, twin-towered gatehouse - maintains an air of impregnability.

The stretch pants projected demureness, regret and impregnability.

Possessing all the stigmata of imminent impregnability.

Thanks to their virtual impregnability, the North Cascades were an unsolved mystery to humans until relatively recently.