Synonyms of invalidate

invalidate

verb

(ˌ)in-ˈva-lə-ˌdāt 

as in to abolish

to put an end to by formal action

those nations eventually invalidated their trade agreement

Synonyms & Similar Words

• abolish
• repeal
• cancel
• overturn
• nullify
• avoid
• void
• negate
• vacate
• annul
• rescind
• abrogate
• revoke
• dismiss
• quash
• dissolve
• withdraw
• set aside
• null
• suspend
• roll back
• strike down
• abate
• reject
• reverse
• retract
• veto
• overrule
• override
• disannul
• do away with
• remove
• eliminate
• forbid
• prohibit
• recall
• erase
• ban
• abort
• countermand
• enjoin
• disallow
• call off
• outlaw
• eradicate
• call
• annihilate
• liquidate
• drop
• throw out
• write off
• break down

Antonyms & Near Antonyms

• enact
• establish
• found
• legislate
• lay down
• validate
• legitimate
• institute
• pass
• permit
• authorize
• allow
• approve
• ratify
• warrant
• endorse
• legitimize
• order
• prescribe
• legalize
• formalize
• clear
• command
• sanction
• mandate
• decree

Synonym Chooser

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

Recent Examples of invalidate

Now thousands of test results have been invalidated, causing a national uproar. — Gina Park, CNN Money, 3 Aug. 2026

Because to be able to identify the mechanism does not invalidate the mechanism. — Glenn Garner, Deadline, 2 Aug. 2026

The effect was to invalidate both China’s nine-dash line and its artificial island-building campaign—a massive blow to China’s national pride. — Jill Goldenziel, Forbes.com, 30 July 2026

Officials worried that some ballots were postmarked at processing facilities the day after they were dropped off at a post office, possibly invalidating them. — John Hanna, Los Angeles Times, 29 July 2026