Also found in: Thesaurus.
ThesaurusAntonymsRelated WordsSynonymsLegend:
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inefficient - not producing desired results; wasteful; "an inefficient campaign against drugs"; "outdated and inefficient design and methods"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"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The patient had reportedly undergone several uneffective antibiotic treatments since 2013 until researchers suggested the experiential procedure. 
This "epigenetic-genetic" therapeutic approach is in sharp contrast to the conventional strategy of targeting oncogenes and oncosuppressors, an approach that has turned out to be uneffective also for the frequent gene mutations.