Definition Of impregnable


(of a fortified position) unable to be captured or broken into.

an impregnable wall of solid sandstone

Example Of impregnable

  • After all, within the space of a three-month election campaign she managed to squander a seemingly impregnable lead of 22 percent over the SPD.

  • an impregnable wall of solid sandstone

  • Austria ruled directly only in the newly formed Kingdom of Lombardy-Venetia, but from the impregnable fortresses of the Quadrilateral in the central Po Valley Austrian bayonets could reach any part of Italy.

  • Between them they created a seemingly impregnable fortress, naturally protected on three sides by cliffs and defended by concentric lines of mutually supporting fortifications.

  • But he had other things in mind - plans that had been consuming his soul since he had escaped from La Fortaleza, the once impregnable fortress that had fallen a little over a year ago.

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