LekhoriLekhoriNeeding or using up much energy; testing powers of endurance.
The movement towards a peaceful settlement has been a long and arduous political struggle.
burning; ardent
1805-1814, Dante, Henry Francis Cary (translator), The Divine Comedy Where flames the arduous Spirit of Isidore.
Difficult or exhausting to traverse.
Beyond the river, an arduous slope rises 3286 feet in 13 miles.
From Latin arduus (“lofty, high, steep, hard to reach, difficult, laborious”), akin to Irish ard (“high”).
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