| counteract |
| crush(oppose, expose, contest, counter, repudiate) |
| defend(verb, maintain, uphold, prove, justify) |
| discept(verb, consider, oppose, dispute, challenge) |
| disclaim(verb, oppose, expose, contest, counter) |
| dismay(verb, upset, break, refute, disprove) |
| dispose of(expression, oppose, expose, contest, counter) |
| doubt(verb, challenge, deny, question, contest) |
| evert(verb, oppose, deny, expose, contest) |
| go against |
| ignore(verb, reject, disregard, mock, disparage) |
| impugn(verb, challenge, question, contest, discredit) |
| kick around(expression, consider, oppose, dispute, challenge) |
| lock horns(verb, expression, consider, oppose, dispute) |
| moot(verb, consider, oppose, dispute, challenge) |
| negative(verb, oppose, deny, discredit, confound) |
| nonplus(confuse, mistake, baffle, muddle, perplex) |
| nullify(discredit, disprove) |
| perplex(verb, confuse, mistake, baffle, muddle) |
| pick a bone(expression, idiom, consider, oppose, dispute) |