| break(disregard, oppose, criticize, challenge, expose) |
| buck(verb, check, oppose, challenge, resist) |
| burn(oppose, crush, expose, contest, counter) |
| burn down(expression, oppose, crush, expose, counter) |
| bypass(verb, reject, dismiss, refuse, deny) |
| call on(verb, expression, decline, reject, refuse) |
| cancel(oppose, crush, expose, contest, counter) |
| cancel out(expression, oppose, crush, expose, counter) |
| carp(verb, oppose, criticize, object, protest) |
| cast aspersions upon(expression, idiom, criticize, dispute, challenge) |
| cast doubt upon(expression, idiom, criticize, dispute, challenge) |
| cavil(verb, oppose, criticize, object, protest) |
| charge(verb, oppose, criticize, object, protest) |
| check(verb, attack, fight, resist, deny) |
| clash(verb, challenge, deny, doubt, question) |
| come down on(expression, idiom, criticize, dispute, challenge) |
| complain(verb, oppose, criticize, object, protest) |
| conflict |
| confront(verb, attack, oppose, fight, challenge) |
| contrast |