mountaineer, n.All

Mountaineer (n.) uses ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠gravity even while climbing against it, taking slow, heavy strides and tacking up the slope like a sailboat against the wind.