not producing an intended effect; an ineffective teacher; ineffective legislation

[ Syn: ineffective , uneffective ]

producing no result or effect; a futile effort; the therapy was ineffectual; an otiose undertaking; an unavailing attempt

[ Syn: futile , otiose , unavailing ]

lacking in power or forcefulness; an ineffectual ruler; like an unable phoenix in hot ashes

[ Syn: ineffective , unable ]