annul

verb

an·​nul ə-ˈnəl How to pronounce annul (audio)
annulled; annulling

transitive verb

1
: to declare or make legally invalid or void
wants the marriage annulled
His title to the estate was annulled.
2
: to reduce to nothing : obliterate
3
: to make ineffective or inoperative : neutralize
annul a drug's effect
Choose the Right Synonym for annul

nullify, negate, annul, abrogate, invalidate mean to deprive of effective or continued existence.

nullify implies counteracting completely the force, effectiveness, or value of something.

a penalty nullified the touchdown

negate implies the destruction or canceling out of each of two things by the other.

the arguments negate each other

annul suggests making ineffective or nonexistent often by legal or official action.

the treaty annuls all previous agreements

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

a law to abrogate trading privileges

invalidate implies making something powerless or unacceptable by declaration of its logical or moral or legal unsoundness.

the court invalidated the statute

Examples of annul in a Sentence

unfortunately, his arrogant attitude annuls the many generous favors he does for people plans to annul their short-lived, ill-advised marriage
Recent Examples on the Web
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.
For instance, Jimmy Carter as president unilaterally annulled the Mutual Defense Treaty between the U.S. and Taiwan. Seung-Whan Choi, Chicago Tribune, 23 Mar. 2025 Kirchner had, a year earlier, backed sanctions for clergymen who publicly opposed the government’s human rights policies, including his decision to annul laws pardoning dictatorship-era atrocities. Federico Perelmuter, The Dial, 13 Mar. 2025 Romania's decision to annul the election, and this week's ban on Georgescu's candidacy in the redo, has been strongly criticized by U.S. Vice President JD Vance, Elon Musk and Moscow. arkansasonline.com, 12 Mar. 2025 Bucharest annulled the results of the first round of the election, opted for a rerun, and ordered a recount. Faisal Kutty, Newsweek, 10 Mar. 2025 See All Example Sentences for annul

Word History

Etymology

Middle English annullen, from Anglo-French annuller, from Late Latin annullare, from Latin ad- + nullus not any — more at null

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of annul was in the 14th century

Browse Nearby Words

Cite this Entry

“Annul.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/annul. Accessed 26 Apr. 2025.

Kids Definition

annul

verb
an·​nul ə-ˈnəl How to pronounce annul (audio)
annulled; annulling
1
: to make ineffective : neutralize
2
: to bring to an end legally
annul a marriage
annulment
ə-ˈnəl-mənt
noun

Legal Definition

annul

transitive verb
an·​nul ə-ˈnəl How to pronounce annul (audio)
annulled; annulling
1
: to declare (a marriage) to have never validly existed compare divorce
2
a
: to make legally void
b
: to declare to no longer have legal effect

More from Merriam-Webster on annul

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