Sentence examples for virtually impregnable from inspiring English sources

The phalanx was virtually impregnable to a frontal attack but could not easily swerve or reverse.

In his memoir, Grant justifies his decision to attack the city, despite the shrewdly placed defenses that proved virtually impregnable.

So while the Stronachs hold just 727,000 shares, their control of the company is virtually impregnable.

Though it is surrounded by large swathes of Christian territory and is virtually impregnable on the shores of the giant Lake Poso, Tentena is also hemmed in.

A weeklong artillery bombardment preceded the British infantry's "going over the top," but the latter were nevertheless mown down as they assaulted the virtually impregnable German positions.

The virtually impregnable valley is home to the Northern Alliance headquarters and is the base from which any attack on Kabul is most likely to begin.

He knows like virtually all prosecutors that as long as Wilson has the near impregnable shield of being able to say "I feared for my life" when confronting Brown it's near impossible to put the cuffs on him.

These defenses made San Juan almost impregnable.

Brent thought the Union line "seemed almost impregnable".

How about Switzerland once considered an impregnable money center?

(Spitzer's position is considered so impregnable that the Republicans have put up a virtually unknown judge to oppose him this fall -- an indubitable proof of political success).