Main Entry: an·tag·o·nize

Variant(s): also British an·tag·o·nise \an-ˈtag-ə-ˌnīz\

Function: transitive verb

Inflected Form(s): an·tag·o·nized also British an·tag·o·nised; an·tag·o·niz·ing also British an·tag·o·nis·ing

: to act in antagonism to : counteract <these effects are antagonized by atropine—Ernest Bueding & Harry Most>