All confirm antonyms

verb confirm

• contradict — If you contradict someone, you say that what they have just said is wrong, or suggest that it is wrong by saying something different.
• deny — When you deny something, you state that it is not true.
• invalidate — to render invalid; discredit.
• reject — to refuse to have, take, recognize, etc.: to reject the offer of a better job.
• disprove — to prove (an assertion, claim, etc.) to be false or wrong; refute; invalidate: I disproved his claim.
• disallow — to refuse to allow; reject; veto: to disallow a claim for compensation.
• disapprove — to think (something) wrong or reprehensible; censure or condemn in opinion.
• refuse — to decline to accept (something offered): to refuse an award.
• veto — the power or right vested in one branch of a government to cancel or postpone the decisions, enactments, etc., of another branch, especially the right of a president, governor, or other chief executive to reject bills passed by the legislature.
• refute — to prove to be false or erroneous, as an opinion or charge.
• annul — If an election or a contract is annulled, it is declared invalid, so that legally it is considered never to have existed.
• destroy — To destroy something means to cause so much damage to it that it is completely ruined or does not exist any more.
• repudiate — to reject as having no authority or binding force: to repudiate a claim.
• discredit — to injure the credit or reputation of; defame: an effort to discredit honest politicians.
• confuse — If you confuse two things, you get them mixed up, so that you think one of them is the other one.
• oppose — to act against or provide resistance to; combat.
• disagree — to fail to agree; differ: The conclusions disagree with the facts. The theories disagree in their basic premises.
• cancel — If you cancel something that has been arranged, you stop it from happening. If you cancel an order for goods or services, you tell the person or organization supplying them that you no longer wish to receive them.
• void — Law. having no legal force or effect; not legally binding or enforceable.
• weaken — to make weak or weaker.
• dishearten — to depress the hope, courage, or spirits of; discourage.
• dissuade — to deter by advice or persuasion; persuade not to do something (often followed by from): She dissuaded him from leaving home.
• unsettle — to alter from a settled state; cause to be no longer firmly fixed or established; render unstable; disturb: Violence unsettled the government.
• hurt — to cause bodily injury to; injure: He was badly hurt in the accident.
• discourage — to deprive of courage, hope, or confidence; dishearten; dispirit.
• disconfirm — to prove to be invalid.