Synonyms of worthless in English:

worthless


See US English definition of worthless

See UK English definition of worthless

adjective

1‘the icon turns out to be worthless’

SYNONYMS
valueless, of little value, of no value, of little worth, of no worth, without value, of little financial value, of no financial value, meritless
trashy, paltry, poor quality, of poor quality, low quality, of low quality, inferior, second-rate, third-rate, low-grade, cheap, cheap and nasty, shoddy, tawdry, gimcrack
informal crummy
British informal rubbishy, two a penny, ten a penny, twopenny-halfpenny
North American informal nickel-and-dime
ANTONYMS

valuable, precious

2‘your conclusions are utterly worthless’

SYNONYMS
useless, no use, of no benefit, to no avail, futile, ineffective, ineffectual, fruitless, unproductive, unavailing, pointless, nugatory, valueless, inadequate, deficient, defective, inferior, unsatisfactory, meaningless, senseless, insubstantial, empty, hollow, silly, banal, trifling, petty, inconsequential, lame, paltry, pathetic, piddling
informal a dead loss
archaic bootless
rare unfructuous
ANTONYMS

useful

3‘he was destroyed by his loyalty to his worthless son’

SYNONYMS
good-for-nothing, ne'er-do-well, useless, despicable, contemptible, base, low, vile, abject, debased, degraded, ignominious, mean, corrupt, villainous, depraved, degenerate, wretched, miserable, sorry, shiftless, feckless, incompetent
informal no-good, no-account, lousy