shopworn vs threadbare

shopworn and threadbare both are adjectives.

Word	Noun	Adjective	Verb	Adverb
shopworn	No	Yes	No	No
threadbare	No	Yes	No	No

As adjectives, shopworn and threadbare are synonyms defined as:

shopworn and threadbare: repeated too often; overfamiliar through overuse

Other synonyms of shopworn include banal, commonplace, hackneyed, old-hat, stock, timeworn, tired, trite, well-worn.

shopworn (adjective)	threadbare (adjective)
repeated too often; overfamiliar through overuse	repeated too often; overfamiliar through overuse
worn or faded from being on display in a store	having the nap worn away so that the threads show through