transcription, транскрипция: [ ɪmpregnəb(ə)l ]
1.
If you describe a building or other place as impregnable , you mean that it cannot be broken into or captured.
The old Dutch fort with its thick high walls looks virtually impregnable...
= impenetrable
ADJ
2.
If you say that a person or group is impregnable , or their position is impregnable , you think they cannot be defeated by anyone.
The Bundesbank’s seemingly impregnable position has begun to weaken.
= unassailable
ADJ