bn:00046164n
Noun Concept
EN
impregnability  invulnerability
EN
Having the strength to withstand attack WordNet 3.0
Definitions
Relations
Sources
EN
Having the strength to withstand attack WordNet 3.0 & WordNet 2020
The quality or state of being impregnable; invincibility. Wiktionary
IS A
WordNet 3.0 & WordNet 2020
Wiktionary