Capable of being climbed, scaled, or moved upward; something that can be ascended.
Formed from 'ascend' (from Latin 'ascendere,' to climb) plus the suffix '-able' (capable of). This adjective structure became standard in English for describing what actions can be performed on objects.
While 'climbable' is more common, 'ascendable' has a more formal, technical feel—rock climbers and geographers might use it when discussing whether a mountain face is ascendable by a certain route.
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