invalidate

• 表示使某事物失去效力、作废或不被承认的动作，常用于法律、技术或逻辑语境中。

A verb used to indicate the act of making something invalid, null, or void, often in a legal, technical, or logical context.

1. Make legally voidB2formal

   To make something officially null or no longer legally valid.

   使无效

   • The court invalidated the contract due to fraud.
   • A missing signature can invalidate the entire document.
   • The new law invalidates all previous agreements.

   同义词abrogateannulcancelnullifyquashrepealrescindrevokevoid

   反义词confirmratifyvalidate

2. Disprove or refuteC1formal

   To prove that an argument, theory, or statement is false or incorrect.

   驳斥

   • The new evidence invalidates the earlier hypothesis.
   • His experiment invalidated the widely accepted theory.
   • The data invalidates the claim that the drug is safe.

   同义词confutecontradictdebunkdiscreditdisprovenegateoverturnquashrebutrefute

   反义词backconfirmcorroborateprovesubstantiatesupportupholdvalidateverify