countermeasure Synonyms

aforementioned retaliation shield return retort remedy redress protection preventive panacea nullifier nostrum support counterattack counteracting agent countermeasures negator counterrevolution counterblast counteragent counteractant antivenin counterinsurgency backfire neutralizer medicine medication barrier barricade aversion assistance armor argument antitoxin antidote answer alleviation buffer catholicon medicament help fix drug defense cure counterstep countermine counteractive corrective action