[adj] not useful; "a curiously unhelpful and useless manual"
[adj] having no beneficial use or incapable of functioning usefully; "a kitchen full of useless gadgets"; "she is useless in an emergency"
Synonyms
cast-off(a), discarded, futile, ineffectual, inutile, junked, otiose, scrap(a), unavailing, unhelpful, unprofitable, unserviceable, unusable, unuseable, waste