Definition, Meaning & Synonyms

impregnable-fortress

noun

/ɪmˈprɛɡ.nə.bəl ˈfɔr.tɪs/

Definition

A stronghold that is impossible to capture or conquer.

Examples

The castle, built on a rocky cliff, served as an impregnable fortress during the war.
Historians describe the ancient city as an impregnable fortress due to its high walls and natural barriers.
Despite numerous attempts, the enemy could not penetrate the impregnable fortress and eventually retreated.

Meaning

An impregnable fortress is so well-defended that it cannot be breached by attackers, often due to its structure and the strategic advantages it provides.