shop ‧ worn /ˈʃɒpwɔːn $ ˈʃɑːpwɔːrn/ BrE AmE adjective American English
1 . a product that is shopworn is slightly damaged or dirty because it has been in a shop for a long time SYN shop-soiled British English
2 . an idea that is shopworn is no longer interesting because it has been discussed many times before SYN shop-soiled British English :
shopworn management techniques