The Oxford Thesaurus An A-Z Dictionary of Synonyms - worthless adj.

1) valueless, unimportant, insignificant, inessential or unessential, dispensable, disposable, paltry: His contribution to the work of the committee proved utterly worthless. 2) pointless, bootless, silly, inane, vain, unavailing, useless, futile, fruitless, unproductive, unprofitable: It is worthless to try to salvage that wreck. 3) cheap, valueless, tawdry, poor, trashy, rubbishy, shabby, wretched, Colloq tinny, crappy, cheesy, Slang chintzy: The deceased's handbag contained only a few items of worthless jewellery.