Having many protuberances, knobs or knots; knotty, rough or rugged.(adjective)
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Use "knaggy" in a sentence
"We crawled and banged another mile and a half, parked at the end of the road, the Mahogany Flat Campground, shouldered packs, and began the 7-mile hike to the knaggy summit."
"But to enter in thereat, because it is of a knaggy, difficult, and rugged access, this is the question which I ask of you."
"When she married she would cultivate the soil like the other women; her flower-like whiteness would fade and turn yellow; her hands would become black and scaly; she would be like her mother and all the old peasant women, a female skeleton, bent and knaggy, like the trunk of an olive tree."