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impenetrable
Definitions
[ɪmˈpɛnɪtrəbl], (Adjective)
Definitions:
- impossible to pass through or enter
(e.g: a dark, impenetrable forest)
- impossible to understand
(e.g: her expression was impenetrable)
Phrases:
Origin
:
late Middle English: via French from Latin impenetrabilis, from in- ‘not’ + penetrabilis ‘able to be pierced’, from the verb penetrare (see penetrate)
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definition by Oxford Dictionaries