Sentence examples for supposedly impregnable from inspiring English sources

He boasted that he had beaten the supposedly impregnable tunnel security "wearing my flip-flops".

Only Constantinople held out behind its supposedly impregnable walls, as the Ottoman Empire spread around it.

In the 1930s French military engineers designed and constructed the Maginot Line, a supposedly impregnable defensive system protecting France's common frontier with Germany and Luxembourg.

The Russian forces withdrew to their supposedly impregnable base at Port Arthur, but it too was eventually taken by the Japanese.

Searle's brigade reached Singapore in January 1942, just in time to witness the capitulation of the supposedly impregnable fortress to the Japanese.

Seven thousand ex-fighters from Canada have journeyed here on a solemn pilgrimage in honor of their fellow warriors who gave their lives to make possible the capture of the supposedly impregnable ridge on Easter Monday, 1917.

Those who mock France for building forts that were supposedly "outflanked" should know the "impregnable" modern US fortifications at Manila, and Britain's Fortress Singapore, were both taken from the rear by the Imperial Japanese Army.

An impregnable assertion.

Is that defence impregnable?

The enigma seems impregnable.

"Bell Canada is impregnable".