Invalidate: meaning, definitions and examples

Used when nullifying a statement, argument, or decision by proving it wrong or ineffective.

• New evidence can invalidate the current theory.
• The court may invalidate the election results if fraud is proven.

Used to legally or formally render something ineffective or void.

• The contract was nullified by the judge due to fraud.
• Any agreement made under duress can be nullified.

Used to describe something that is legally or officially without effect or force.

• The court declared the agreement void due to a lack of consent.
• Any unauthorized changes will make this contract void.

Often used in the legal context to declare a marriage, law, or contract null and void as if it never existed.

• They decided to annul their marriage after finding out they were distant relatives.
• The Supreme Court can annul laws that are unconstitutional.

Commonly used to terminate an event, order, or subscription before it takes place or is fulfilled.

• We had to cancel our flight due to bad weather.
• I need to cancel my magazine subscription.

Use when undermining the validity or credibility of something, such as an argument, statement, or document.

• The discovery of new evidence could invalidate his theory.
• The contract has been invalidated due to the lack of signatures.

Appropriate in competitive or procedural contexts where a person or entity is removed from participation due to rules or standards violations.

• The athlete was disqualified for using performance-enhancing drugs.
• Failure to meet the deadline will disqualify the application.

Typically used in legal or transactional contexts to indicate that something is no longer valid or has no legal force.

• The cheque was void after the mistake was discovered.
• A contract signed under duress is considered void.

Commonly used in legal and formal contexts to describe the act of making something legally void or ineffective.

• The court's ruling will nullify the previous agreement.
• The new policy will nullify any previous understanding between the parties.

Utilized when counteracting or nullifying the effect or existence of something, often in a broad or abstract sense.

• The recent actions negate all progress we've made.
• Having a ticket doesn’t negate the requirement to carry identification.