oppose

v.

1. To hold a contrary opinion

   object, expose, disapprove, debate, dispute, contradict, argue, search out, deny, run counter to, protest, defy, cross, taunt, controvert, cope, speak against, gainsay, confront, thwart, neutralize, reverse, turn the tables, not countenance, be opposed to, oppose change, not have any part of, face down, militate against, interfere with, disapprove of, cry out against, disagree with, not conform, run against, run counter to, come in conflict with, not abide, go contrary to, part company with, frown at, not be good for, not accept, call in question, be at cross purposes, contrast with, conflict with, grapple with, doubt, be reluctant, be against, be unwilling, reject, dislike, demur, deprecate, take exception, repudiate, repugn, question, probe, resist, confound, confute, refute, stand up for the other side, cry out against*, buck*, turn thumbs down*, cry down*, swim against the stream*, have a brush with*; see also sense 2, dare 2, face 1.

   Antonyms agree*, approve*, accept. *

2. To fight

   resist, battle, encounter, confront, bombard, assault, attack, assail, storm, protest, clash, meet, skirmish, engage, contest, face, restrain, go against, match against, turn against, count against, mark against, uphold, defend, rebel, revolt, secede, mutiny, strike back, combat, run counter to, defy, snub, infringe, strive against, run against, grapple with, fight off, withstand, repel, guard, safeguard, act, shield, counterattack, struggle, outflank, antagonize, retaliate, impede, overpower, take on all comers*, scrap*, lock horns with*, go to the mat*, fly in the face of*; see also fight 2.