Impossible to travel along or over; impassable: some roads are completely unpassable because of flood waters
More example sentences
- In the dry season it is arid, in the wet season it is an unpassable swamp.
- Others travelled northeast from Europe in search of an equally fabled, but also unpassable, arctic passage along Russia's northern coast.
- Tradesmen and people dumping household waste have made the track to his mother's house almost unpassable.
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