WordNet sense 1 (a dirty shabbily clothed urchin):

ragamuffin

WordNet sense 2 (worn to shreds; or wearing torn or ragged clothing):

tattered

WordNet sense 3 (affected by wear; damaged by long use):

worn

WordNet sense 4 (in deplorable condition):

bedraggled, broken-down, derelict, dilapidated, ramshackle, tumble-down

WordNet sense 5 (harmed or injured or spoiled):

damaged