Significados de unclimbable mountain en inglés

Yet every world should have at least one unclimbable mountain.

While here, I rode round northward to inspect that side of this singular and utterly unclimbable mountain.

I've climbed unclimbable mountains.

Their land, which was very large and densely inhabited, was ringed round with unclimbable mountains, except to the north, where stood the great Fire-peak.