| Answer | Crossword Clue |
|---|---|
| inefficacious | Not producing the desired effect |
| ineffectual | Not producing any or the desired effect |
| ineffective | Not producing any significant or desired effect |
| effectual | successful in producing the desired effect |
| effectually | EFFECTUAL, successful in producing the desired effect |
| workable | Capable of producing the desired effect or result; practicable; feasible |
| ineffectual | not producing the proper or intended effect |
| ineffectually | INEFFECTUAL, not producing the proper or intended effect |
| efficacy | capacity for producing a desired result or effect; effectiveness |
