Definition of "reactively" [reactively]

• In a reactive fashion (adverb)
• In relation to or by means of a reaction (adverb)

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• "Badgers were culled proactively at 10 sites and "reactively" at"
• ""I think it's better for Canada to deal proactively rather than just kind of reactively; narcotics is a global issue clearly.""
• "When policy is being made so reactively and on the hoof, as the coalition's policing policy now appears to be, it is hard to know where the momentum will end, as David Cameron, cutting short his Africa visit to address the Commons on the crisis tomorrow, is surely once again only too uneasily aware."