Impregnable

The prison was impregnable, and no one had ever escaped from it.

The CEO's impregnable decision-making style was admired by his colleagues.

The stronghold was impregnable to attacks from the air, thanks to its anti-aircraft defenses.

The fortress was considered impregnable by the attacking army.

The mountain range provided an impregnable barrier against the advancing army.

The ship's hull was impregnable, and it could withstand the roughest seas.

The security system in the building was impregnable.

The encryption on the government documents was impregnable.

The concrete structure was impregnable, and it could withstand earthquakes and other natural disasters.

The safe was impregnable, and it couldn't be opened by anyone except the owner.

The castle was impregnable, and no enemy could penetrate its defenses.

The impregnable armor of the knight made him nearly invincible in battle.

The impregnable gates prevented unauthorized entry into the palace.

The logic behind the math problem was impregnable for the student.

The artist's vision was impregnable, and he refused to compromise his artistic integrity.

The castle was deemed impregnable, but the siege lasted for months.

The impregnable walls of the prison made escape impossible.

The encryption on the company's database was so strong that it was considered impregnable.

The boxer's will was impregnable, and he refused to give up despite the brutal beating he received.

The wall was impregnable, and even the strongest winds couldn't knock it down.

The evidence presented by the prosecution was impregnable.

The lawyer's legal argument was impregnable to the opposing counsel.

The company's reputation for quality was impregnable, despite the competition.

The scientific research was based on impregnable data.

The politician's reputation was impregnable, and no amount of scandal could tarnish it.

The safety procedures in place were impregnable and ensured the well-being of all workers.

The athlete's impregnable record stood the test of time.

The logic behind the math problem was impregnable and left no room for doubt.

The facts of the case were impregnable and could not be disputed.

The scientist's theory was backed up by impregnable research.

The fortress was impregnable and withstood all enemy attacks.

The politician's defense was impregnable and she emerged unscathed from the scandal.

The security measures were impregnable and ensured the safety of the building.

The historian's argument was impregnable, backed by numerous primary sources.

The encryption used in the communication system was impregnable, making it impossible for hackers to access the information.

The historian's interpretation of the events was impregnable and widely accepted.

His alibi was impregnable and he was cleared of any wrongdoing.

The company's market position was impregnable due to its patents.

The encryption used by the government was impregnable.

The mountain peak was impregnable and had never been successfully climbed.

The boxer's defense was impregnable, making it difficult for his opponent to land any punches.

The athlete's defense was impregnable against his opponent's attacks.

The code for the safe was impregnable, and even the best thief couldn't crack it.

The witness's impregnable testimony was crucial in solving the case.

The politician's impregnable ethics were admired by her constituents, who trusted her to always do the right thing.

The chef's impregnable food safety standards ensured that the restaurant never had any health code violations.

The company's impregnable security measures protected its customers' personal information.

The teacher's impregnable dedication to her students ensured that they received the best education possible.

The company's impregnable success in the market was admired by many.

The impregnable fortress remained unconquered despite numerous attempts to breach its walls.