counteract
oxford
views updated May 14 2018coun·ter·act / ˈkountərˌakt/ •
v. [tr.] act against (something) in order to reduce its force or neutralize it.DERIVATIVES: coun·ter·ac·tion / ˌkountərˈakshən/ n.coun·ter·ac·tive / kountərˈaktiv/ adj.
The Oxford Pocket Dictionary of Current English