ineffective Antonyms

effective omnipotent realizable redoubtable retributive retributory rewarding rewardful sari saving serviceable sinewed strengthy strong structured ratchet puncher puissant on operant operating operative organized performable persuasive poss potent powerful practicable practical productive profitable suasive successful systematic streamlined all-powerful awe-inspiring unstinted functioning cash crop meaningful operational supportive hard-hitting impactful on the hook operationally well-ordered functionalist