Sentence examples for impregnable and from inspiring English sources

Geographic factors rendered the capital impregnable, and two Chinese attacks were repulsed in 751 and 754.

"However, like any piece of security software, they are not impregnable and are an attractive target for attackers".

This isn't to say that security here is lax — dealers, movers and collectors describe the place as impregnable, and locks and cameras abound.

For many years this type of cipher was thought to be impregnable and was known as le chiffre indéchiffrable, literally "the unbreakable cipher".

The speech caused a frenzy in the press, with one paper applauding it as "clear, calm, sagacious, profound, impregnable," and another denouncing Seward as a "repulsive abolitionist".

"Her dress is like an armour showing that she, the Virgin Queen, is actually impregnable and has defended her realm against the Spanish".

Herb lived his life as a proud Zionist who remained constant in his conviction that only a safe, secure, and impregnable Israel, within its legitimate and historic borders, was the sole guarantor of Jews throughout the world.

And yet everywhere there is impregnable defiance — and aspiration.

The apparently impregnable Monsieur Brousse and his team have finally fallen, and there will be much rejoicing.

It is surrounded by an invisible but impregnable wall and a moat full of sharks and crocodiles.

The business plan was to raise a gargantuan sum in an initial public offering and use it to construct an impregnable brand and Web presence.