ineffective
in.ef.fec.tive \.in-*-'fek-tiv\ aj 1: not producing an intended effect : INEFFECTUAL 2: not capable of performing efficiently : INCAPABLE - in.ef.fec.tive.ly av
in.ef.fec.tive \.in-*-'fek-tiv\ aj 1: not producing an intended effect : INEFFECTUAL 2: not capable of performing efficiently : INCAPABLE - in.ef.fec.tive.ly av