threadbare vs hackneyed

threadbare and hackneyed both are adjectives.

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

As adjectives, threadbare and hackneyed are synonyms defined as:

threadbare and hackneyed: repeated too often; overfamiliar through overuse

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

threadbare (adjective)	hackneyed (adjective)
repeated too often; overfamiliar through overuse	repeated too often; overfamiliar through overuse
having the nap worn away so that the threads show through