an·​ti | \ˈan-ˌtī, ˈan-tē \
plural antis

Definition of anti 

(Entry 1 of 4)

: one that is opposed The group was divided into pros and antis.



Definition of anti (Entry 2 of 4)

: opposed the anti group

Definition of anti (Entry 3 of 4)

: opposed to : against They were anti big corporations.


\ˌan-ˌtī, ˌan-tē also ˌan-tibefore consonsants\
variants: or ant- or anth-

Definition of anti- (Entry 4 of 4)

1a : of the same kind but situated opposite, exerting energy in the opposite direction, or pursuing an opposite policy anticlinal

b : one that is opposite in kind to anticlimax

2a : opposing or hostile to in opinion, sympathy, or practice anti-Semite

b : opposing in effect or activity antacid

3 : serving to prevent, cure, or alleviate antianxiety

4 : combating or defending against antiaircraft antimissile

5 : being or composed of antimatter antiproton antihydrogen

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Synonyms & Antonyms for anti

Synonyms: Preposition

against, agin [dialect], contra

Antonyms: Preposition

for, pro

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Examples of anti in a Sentence


if you ask me, she's anti anything that sounds like the least bit of fun

Recent Examples on the Web: Noun

The corruption monitoring agency said the Afghan government’s anti-corruption efforts had been insufficient. Jamey Keaten, The Seattle Times, "Top diplomats at UN meeting offer support for Afghanistan," 28 Nov. 2018 Wardlow also blasted Ellison for his association with Louis Farrakhan, the Nation of Islam leader, who has drawn controversy for his repeated anti-Semitic comments. Fox News, "Ellison forced to fend off assault allegations in tense debate with GOP rival," 22 Oct. 2018 So how has the current Republican anti-environmentalism come so far so fast? Christopher Sellers, Vox, "How Republicans came to embrace anti-environmentalism," 6 July 2018 In mid-June, a top official in the Colombian attorney general’s office traveled to Miami to give an anti-corruption presentation to Internal Revenue Service investigators. Jay Weaver, miamiherald, "Colombian Extraditon 05 18," 18 May 2018 Every patient in the trial had been on at least one anti-depressant that failed to work, and some had been on several that failed. Lucette Lagnado, WSJ, "Which Anti-Depressant is Right for You? Your DNA Can Shed Some Light," 6 May 2018 Take the anti-distracted driving pledge on Doug Turnbull, ajc, "Gridlock Guy: Parents, kids work together to stop distracted driving," 26 Apr. 2018 Like Phillips, Stutzman had appealed a lower court's ruling that the state's anti-discrimination law required her to serve gay and straight couples equally. Richard Wolf, USA TODAY, "First cake, now flowers: Supreme Court gives florist who refused to serve gay wedding a new hearing," 25 June 2018 Additional amounts of magnesium, B-complex vitamins, B-12, biotin, glutathione, zinc and anti-nausea drug Zofran are also barreling through my bloodstream. Craig Hlavaty, Houston Chronicle, "Feeling the drip, drip, drip of the mobile IV craze," 13 June 2018

Recent Examples on the Web: Adjective

That might include medication (such as blood thinners, anti-seizure medications, or calcium channel blockers that can reduce some of the symptoms of Moyamoya). Sarah Jacoby, SELF, "'Greatest Showman' Star Keala Settle Reveals She Was Diagnosed With Moyamoya Disease," 28 Nov. 2018 During Hitler’s rule, a variety of Nazi groups pushed his anti-Semitic, fascist agenda in the United States. Eric Ginsburg, Teen Vogue, "American Nazis and Nazi Sympathizers Have Been Around Since the 1930’s," 26 Nov. 2018 Labour has faced a wave of accusations of anti-Semitism in recent years as well as criticism that its leaders have been too slow to root out members displaying prejudice toward Jews, especially online. Jason Douglas, WSJ, "Police Investigate Alleged Anti-Semitic Hate Crimes by U.K. Labour Party Members," 2 Nov. 2018 The perks of the lightweight machine are its detachable canister for portable cleaning, swivel steering, and anti-allergy seal. Collier Sutter, House Beautiful, "People Are Obsessed With This $150 Vacuum From Amazon," 2 Oct. 2018 Syrian combat aircraft had been attempting to engage anti-government Kurdish and Arab militias, with U.S. aircraft attempting to stop them by flying low—but not using weapons to shoot the Syrians down. Kyle Mizokami, Popular Mechanics, "How a U.S. Navy Pilot Shot Down the First Enemy Plane in 18 Years," 11 Sep. 2018 This, combined with fast arrests and a history of using alleged anti-government plots to jail dissidents, led to speculations about a false flag attack. Ulrike Franke, The Verge, "The Caracas drone attack won’t be the last of its kind," 17 Aug. 2018 The decision, which hands disputed border areas to Eritrea, was the boldest move yet in a wave of reforms in Ethiopia, Africa’s second most populous country, after years of anti-government protests. Washington Post, "Eritrea leader visits Ethiopia on Saturday in historic thaw," 13 July 2018 But among the anti-Trump crowd were a few who had come to Windsor to support the president. Ceylan Yeginsu, New York Times, "London’s ‘Trump Baby’ Balloon Flies as Protests Take Off Across U.K.," 13 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'anti.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of anti


1788, in the meaning defined above


1855, in the meaning defined above


1953, in the meaning defined above

History and Etymology for anti




see anti-


see anti-


anti- from Middle English, from Anglo-French & Latin; Anglo-French, from Latin, against, from Greek, from anti; ant- from Middle English, from Latin, against, from Greek, from anti; anth- from Latin, against, from Greek, from anti — more at ante-

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Statistics for anti

Last Updated

10 Dec 2018

Look-up Popularity

Time Traveler for anti

The first known use of anti was in 1788

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More Definitions for anti

English Language Learners Definition of anti

 (Entry 1 of 2)

: opposed to (something or someone)



English Language Learners Definition of anti- (Entry 2 of 2)

: opposite to something

: against someone or something

: acting to prevent something


\ˈan-ti, ˈan-ˌtī\
variants: or ant- \ant \

Kids Definition of anti-

1 : opposite in kind, position, or action anticyclone

2 : hostile toward antisocial

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More from Merriam-Webster on anti

Rhyming Dictionary: Words that rhyme with anti

Thesaurus: All synonyms and antonyms for anti

Nglish: Translation of anti for Spanish Speakers

Britannica English: Translation of anti for Arabic Speakers

Comments on anti

What made you want to look up anti? Please tell us where you read or heard it (including the quote, if possible).


the figure or shape of a crescent moon

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