transcription, транскрипция: [ im-ˈpreg-nə-bəl ]
adjective
Etymology: Middle English imprenable, from Middle French, from in- + prenable vulnerable to capture, from prendre to take — more at prize
Date: 15th century
1. : incapable of being taken by assault : unconquerable
an impregnable fortress
2. : unassailable ; also : impenetrable
impregnable walls
• im·preg·na·bil·i·ty (ˌ)im-ˌpreg-nə-ˈbi-lə-tē noun
• im·preg·na·ble·ness im-ˈpreg-nə-bəl-nəs noun
• im·preg·na·bly -blē adverb