Synonyms for worthless

modified

1. Valueless

   profitless, counterproductive, barren, unprofitable, unproductive, unimportant, insignificant, counterfeit, bogus, cheap, sterile, waste, wasted, no good, trashy, inconsequential, petty, piddling, paltry, trivial, trifling, unessential, beneath notice, empty, good-for-nothing, no-account*, junky*, crowbait*, not worth a damn*, of no earthly use*, not worth the trouble*, not worth speaking of*, fit for the dust hole*, not able to say much for*.

2. Useless

   ineffective, of no use, ineffectual; see useless 1, waste.