Useful

Antonyms of USEFUL

impotent, unfitting, disadvantageous, disagreeable, inconvenient, otiose, incapable, injurious, bad, unhelpful, unusable, improper, hurtful, Unvaluable, unsuitable, harmful, Unhandy, useless, awkward, unacceptable, futile, unsuited, inappropriate, worthless, Misbehaving, unskilled, unproductive.