American Heritage Dictionary
(2)
Century Dictionary
GNU Webster's 1913
(1)
WordNet
(2)
Elsewhere on the web
Sometimes he has shopworn or slight blems available at reduced prices.— Mandolin Cafe News
The lyrics almost everywhere on the record are first-person and a bit shopworn, though, which might or might not have to do with this being such a one-person undertaking.— DOA
Lots of heat on rightwing blogs accusing Obama of disparaging Sarah Palin by using a shopworn ...— The Daou Report
Wladimir Klitschko must have been a very good boy this year, because Saturday at the SAP Arena in Mannheim, Germany, the IBF, WBO, and IBO heavyweight champion received a 253. 5-pound Christmas present in the form of shopworn former heavyweight champ Hasim Rahman, who managed to stay upright for six rounds and 44 seconds before Klitschko took him out and ended a one-sided bout.— Doghouse Boxing News
Burr Steers, whose only previous feature was the dysfunctional-family comedy "Igby Goes Down," does a competent directing job but the story is too shopworn and predictable to hold your interest for very long.

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You can expect to see this word about once a year.