The Poles might have remained unreached, rivers uncharted, mountains unscaled, and the moon unvisited.
The sport's history is often described in terms of first ascents, the conquering of previously unscaled mountains.
The challenge they eventually settled on was to climb the previously unscaled western face of Siula Grande, a 21,000 peak in the Peruvian Andes.
The Arctic's ice-bound seas are, to a sailor with a lust for the north, like unscaled mountains to climbers: they must be attempted because they are there.
Definition of unscaled in US English:
unscaled
adjectiveˌənˈskāldˌənˈskeɪld
(of a mountain) not yet climbed.
（山）尚未被攀登的
they had climbed a hitherto unscaled peak
他们登上了一座迄今从未有人攀登过的山峰。
Example sentencesExamples
The sport's history is often described in terms of first ascents, the conquering of previously unscaled mountains.
The challenge they eventually settled on was to climb the previously unscaled western face of Siula Grande, a 21,000 peak in the Peruvian Andes.
The Arctic's ice-bound seas are, to a sailor with a lust for the north, like unscaled mountains to climbers: they must be attempted because they are there.
The Poles might have remained unreached, rivers uncharted, mountains unscaled, and the moon unvisited.