| Adj. | 1. | uneffective - not producing an intended effect; "an ineffective teacher"; "ineffective legislation" idle - not in action or at work; "an idle laborer"; "idle drifters"; "the idle rich"; "an idle mind" inefficacious - lacking the power to produce a desired effect; "laws that are inefficacious in stopping crime" inefficient - not producing desired results; wasteful; "an inefficient campaign against drugs"; "outdated and inefficient design and methods" powerless - lacking power useless - having no beneficial use or incapable of functioning usefully; "a kitchen full of useless gadgets"; "she is useless in an emergency" |