oppose

[1]	resist , counter , object (to) , defy , take a stand against , withstand , resist , combat , contest , attack , counter-attack , fight , grapple with , contend with/against
[2]	check , fight , fight back , bar , obstruct , fight down , defend , block , hinder , impede , stop , slow , curb , restrain , inhibit , interfere with , restrict , prevent , obviate , preclude , thwart , foil , frustrate
[3]	match , counterbalance , offset , counterbalance , contrast , pit/set against , play off (against) , set off
[4]	pit , match , play off
[5]	react
[6]	controvert , contradict