napworn adjective2 •Having its fuzzy surface worn down or off.his hat, which had grown nap-worn and round edged through use — 1822 •Wearing clothing of worn material.[…] lichen grew on an ancient fence like an old old sheep’s coat; and stroking it with my hand once made me feel how old and lusterless and napworn you might be. — 1950 formsmore napworn · most napworn