abjure, assert the contrary, be contrary to, belie, call into question, challenge, combat, contest, contradict, contravene, controvert, counter, cross, deny, disaffirm, disallow, disavow, disclaim, disown, disprove, dispute, fight, forswear, impugn, join issue upon, negate, negative, not accept, not admit, nullify, oppose, oppugn, rebut, recant, refuse to admit, refute, reject, renounce, repudiate, resist, retract, revoke, take back, take issue with, traverse, withstand