useless

I adjective barren, effete, fatuous, feckless, frivolous, fruitless, functionless, futile, idle, impotent, impracticable, inadequate, incapable, incompetent, ineffective, ineffectual, inefficacious, inept, inoperative, inutile, invalid, needless, not serving any purpose, nugatory, null and void, of no use, otiose, pointless, powerless, purposeless, redundant, superfluous, trivial, unavailing, unfit, unhelpful, unnecessary, unproductive, unprofitable, unsatisfactory, unserviceable, unusable, vain, valueless, void, worthless II index disabled (made incapable), expendable, futile, impracticable, inadequate, incapable, incompetent, ineffective, ineffectual, inept (incompetent), invalid, needless, nugatory, null (insignificant), null (invalid), null and void, otiose, paltry, powerless, redundant, superfluous, trivial, unable, unavailing, unfit, unproductive, unsatisfactory, void (invalid)