Synonyms of nullify

nullify

verb

ˈnə-lə-ˌfī 

as in to abolish

to put an end to by formal action

the constitutional amendment that nullified Prohibition

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

Synonym Chooser

How does the verb nullify differ from other similar words?

Some common synonyms of nullify are abrogate, annul, invalidate, and negate. While all these words mean "to deprive of effective or continued existence," nullify implies counteracting completely the force, effectiveness, or value of something.

a penalty nullified the touchdown

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

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

a law to abrogate trading privileges

When could annul be used to replace nullify?

The words annul and nullify are synonyms, but do differ in nuance. Specifically, annul suggests making ineffective or nonexistent often by legal or official action.

the treaty annuls all previous agreements

Where would invalidate be a reasonable alternative to nullify?

While in some cases nearly identical to nullify, invalidate implies making something powerless or unacceptable by declaration of its logical or moral or legal unsoundness.

the court invalidated the statute

When is it sensible to use negate instead of nullify?

The synonyms negate and nullify are sometimes interchangeable, but negate implies the destruction or canceling out of each of two things by the other.

the arguments negate each other

Example Sentences

Recent Examples of nullify

This is because climate change and ecological collapse are very likely to cause political fragmentation that nullifies legal and cultural precedents like abolition, and bring about agrarian and manufacturing crises and scarcities in which people are forced into labor. —Literary Hub, 12 Dec. 2025

The bill would also nullify portions of a 2025 federal regulation that loosened limits on the actuarial value of exchange plans and altered how subsidies are calculated, effectively reshaping how generous plans can be and how federal support is determined. —Nick Lichtenberg, Fortune, 5 Dec. 2025

McTavish’s tally was nullified, however, by an offside challenge by André Tourigny. —Andrew Knoll, Oc Register, 4 Dec. 2025

The 15-yard unsportsmanlike penalty nullified the gain and pushed Chicago back on the drive — though Moore later delivered a 25-yard touchdown on the same possession. —Rowan Fisher-Shotton, MSNBC Newsweek, 29 Nov. 2025