inefficacious(redirected from inefficaciousness)
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Related to inefficaciousness: efficaciousness
inefficaciousadjective barren, feeble, for naught, futile, idle, impotent, inadequate, incapable, ineffective, ineffectual, inefficient, inept, infertile, profitless, sterile, to no avail, to no purpose, unavailing, unproductive, unprofitable, unrewarding, unsuccessful, valueless, weak, worthless
See also: defunct, disabled, futile, inadept, inadequate, incompetent, ineffective, ineffectual, inept, invalid, nugatory, null, null and void, otiose, powerless, unavailing, unproductive