Impregnability

The encryption's impregnability ensured that the data was secure.

The athlete's impregnability on the field made them a valuable asset to their team.

The company's impregnability to market fluctuations helped it weather economic downturns.

The island's impregnability to outsiders allowed its unique culture to thrive.

The castle's impregnability was due to its high walls and strong gates.

The fortress's impregnability was tested during the siege, but it remained intact.

The government's impregnability to criticism was a cause for concern among citizens.

The thick jungle vegetation added to the impregnability of the mountain.

The mountain range's impregnability made it difficult for hikers to traverse.