Impregnable

Adjective describing a place, position, or defense that is incapable of being captured or broken into; impossible to overcome, defeat, or penetrate.

It suggests an absolute defense, such as a fortress built of such strength that attackers are certain to be repelled.

Also used figuratively to describe a person or idea that is unassailable and cannot be changed or weakened by outside influences, arguments, or attacks.

It highlights an extreme level of invulnerability. .

Impregnable meaning with examples

• The castle was designed to be impregnable, with towering walls, a deep moat, and armed guards stationed at every point. Despite numerous sieges throughout history, its fortifications successfully repelled every attempt to breach its defenses, proving its unwavering resilience.
• Her arguments were so well-researched and presented that her position on climate change felt impregnable. She had data, scientific studies, and logical reasoning supporting her views, making it almost impossible to refute.
• The company's financial reserves acted as an impregnable barrier against economic downturns. Their significant cash flow and diverse investments ensured they could weather any market fluctuations and maintain stability.
• The general considered the mountain pass impregnable, believing that the terrain would make it impossible for the enemy to launch a successful surprise attack. He fortified the area and prepared for any potential assault.