All countermanding synonyms

noun countermanding

• invalidation — to render invalid; discredit.
• annulment — The annulment of a contract or marriage is an official declaration that it is invalid, so that legally it is considered never to have existed.
• rescindment — to abrogate; annul; revoke; repeal.
• neutralization — the act, process, or an instance of neutralizing.
• vitiation — to impair the quality of; make faulty; spoil.