Open Live Multilingual Dictionary
| Language | Translation |
|---|---|
| English | impenetrable |
| English | impermeable |
| English | impervious |
| German | undurchdringlich |
| French | impénétrable |
| Russian | недоступный |
| Italian | impenetrabile |
| Czech | neproniknutelný |
| Czech | neprostupný |
| Czech | nevyzpytatelný |
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