impenetrability
US /ɪmˌpen.ə.trəˈbɪl.ə.t̬i/
UK /ɪmˌpen.ə.trəˈbɪl.ə.t̬i/
1.
sự không thể xuyên thủng
the quality of being impossible to see through or go through:
:
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It's hard to get access to most of the animals because of the impenetrability of the habitat.