valueless

adjective

1 the watercolours turned out to be valueless:

worthless, of no (financial) value, of little/negligible value, trifling;

inferior, substandard, second-rate, third-rate, poor-quality, low-quality, low-grade, cheap, shoddy, trashy, tawdry, gimcrack, twopenny-halfpenny, Brummagem;

(be valueless) would fetch nothing;

British, informal rubbishy.

2 their efforts were valueless:

pointless, useless, to no purpose, (of) no use, unprofitable, profitless, futile, vain, in vain, to no avail, to no effect, fruitless, senseless, unproductive, purposeless, idle, worthless, ineffective, unavailing, nugatory, unrewarding, thankless;

archaic bootless.

valueless Oxford Dictionary of English