INVALIDATE Synonyms: 79 Similar and Opposite Words

Q: How does the verb 'invalidate' differ from other similar words?

Some common synonyms of invalidate are abrogate , annul , negate , and nullify . While all these words mean "to deprive of effective or continued existence," invalidate implies making something powerless or unacceptable by declaration of its logical or moral or legal unsoundness. // the court invalidated the statute

Q: How are the words 'abrogate' and 'annul' related as synonyms of 'invalidate'?

Abrogate is like annul but more definitely implies a legal or official act. // a law to abrogate trading privileges

Q: When is 'annul' a more appropriate choice than 'invalidate'?

The meanings of annul and invalidate largely overlap; however, annul suggests making ineffective or nonexistent often by legal or official action. // the treaty annuls all previous agreements

Q: When could 'negate' be used to replace 'invalidate'?

Although the words negate and invalidate have much in common, negate implies the destruction or canceling out of each of two things by the other. // the arguments negate each other

Q: When can 'nullify' be used instead of 'invalidate'?

While the synonyms nullify and invalidate are close in meaning, nullify implies counteracting completely the force, effectiveness, or value of something. // a penalty nullified the touchdown

invalidate

verb

(ˌ)in-ˈva-lə-ˌdāt

Definition of invalidate

as in to abolish

to put an end to by formal action those nations eventually invalidated their trade agreement

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How does the verb invalidate differ from other similar words?

Some common synonyms of invalidate are abrogate, annul, negate, and nullify. While all these words mean "to deprive of effective or continued existence," invalidate implies making something powerless or unacceptable by declaration of its logical or moral or legal unsoundness.

the court invalidated the statute

How are the words abrogate and annul related as synonyms of invalidate?

Abrogate is like annul but more definitely implies a legal or official act.

a law to abrogate trading privileges

When is annul a more appropriate choice than invalidate?

The meanings of annul and invalidate largely overlap; however, annul suggests making ineffective or nonexistent often by legal or official action.

the treaty annuls all previous agreements

When could negate be used to replace invalidate?

Although the words negate and invalidate have much in common, negate implies the destruction or canceling out of each of two things by the other.

the arguments negate each other

When can nullify be used instead of invalidate?

While the synonyms nullify and invalidate are close in meaning, nullify implies counteracting completely the force, effectiveness, or value of something.

a penalty nullified the touchdown

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of invalidate But that does not invalidate the frustrations or concerns of the drivers, nor those of fans who are less upbeat about the new cars and style of racing. — Luke Smith, New York Times, 20 Aug. 2026 Having lost its attempt to invalidate the FCC’s process for issuing financial penalties, Verizon now wants another chance to argue that the fine itself wasn’t legally justifiable. — Jon Brodkin, ArsTechnica, 17 Aug. 2026 Judge James Wesley Hendrix out of the Northern District of Texas invalidated key components of the nearly 100-year-old National Firearms Act (NFA) in more than a dozen states. — Jaclyn Diaz, NPR, 17 Aug. 2026 The four siblings had argued that the Ending Forced Arbitration of Sexual Assault and Sexual Harassment Act of 2021 invalidated the agreement, but the judge said the EFAA didn’t apply retroactively. — Nancy Dillon, Rolling Stone, 13 Aug. 2026 See All Example Sentences for invalidate

Recent Examples of Synonyms for invalidate

Verb

This July, the EU enacted one of their demands, abolishing the customs duty exemption below €150 and introducing a temporary €3 duty per item.

— Angela Velasquez, Footwear News, 3 Sep. 2026
Others, like abolishing the Senate and Supreme Court, are more controversial and used by Republicans to hammer DSA candidates as out of step with the American mainstream.

— Sacbee.com, Sacbee.com, 2 Sep. 2026

Definition of abolish

Verb

By contrast, Congress repealed federal restrictions and taxes on brewing beer for personal use in 1978.

— Maureen Groppe, USA Today, 30 Aug. 2026
In 2022, Williams helped lead a group of residents to introduce and pass ballot measures that repealed three of El Dorado Hills’ LLADs.

— Haley Parsley August 28, Sacbee.com, 28 Aug. 2026

Definition of repeal

Verb

But if the stay is lifted or overturned, USPS would require states to submit lists of mail ballot recipients and get approval for envelope and ballot designs with individualized barcodes.

— Peter Weber, TheWeek, 2 Sep. 2026
Bans can last five to 10 years, and some have been successfully overturned in court, lawyers say.

— Daniel Estrin, NPR, 2 Sep. 2026

Definition of overturn

Verb

City officials asked people to avoid the downtown area where police are investigating the shooting.

— Michael Loria, USA Today, 3 Sep. 2026
Some China watchers, however, are keeping their expectations low, as both sides appear to be more interested in avoiding moves that would risk their current trade truce.

— Justina Lee, CNBC, 3 Sep. 2026

Definition of avoid

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invalid

invalidate

invalidated

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“Invalidate.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/invalidate. Accessed 5 Sep. 2026.

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Synonyms of invalidate

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