Totally ineffective (7)
I believe the answer is:
useless
(Other definitions for useless that I've seen before include "Of no benefit" , "Of no practical or worthwhile application" , "to no avail" , "Incompetent" , "Counterproductive" .)
I believe the answer is:
useless
(Other definitions for useless that I've seen before include "Of no benefit" , "Of no practical or worthwhile application" , "to no avail" , "Incompetent" , "Counterproductive" .)