in·ef·fi·ca·cious 
(ĭn-ĕf′ĭ-kāshəs)
(ĭn-ĕf′ĭ-kāshəs)adj.
Not capable of producing a desired effect or result; ineffective.
in·ef′fi·cacious·ly adv.
- metalanguage
- metal detector
- metal halide lamp
- metalhead
- metalinguistic
- metalinguistically
- metalinguistics
- metall-
- metall-
- metalli-
- metalli-
- metallic
- metallically
- metallic bond
- metalliferous
- metalline
- metallo-
- metallographer
- metallographic
- metallographically
- metallography
- metalloid
- metallophone
- metallurgic
- metallurgical