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

Keep scrolling for more

Synonyms & Antonyms for anti

Synonyms: Preposition

against, contra

Antonyms: Preposition

for, pro

Visit the Thesaurus for More 

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

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 Share’s parents, who are Russian and Polish, fled brewing anti-Semitism in the 1920s., "From L.A. to N.Y., hundreds of thousands join nationwide rallies to protest Trump's immigration policies," 1 July 2018 Comcast had flirted with the idea of buying these same properties last year, but potential anti-trust issues stymied its effort. Laura Bradley, HWD, "What Disney and Comcast’s Battle Over Fox Means for Film and TV Fans," 14 June 2018 The dispute over what transpired next has turned into the latest standoff since Italy’s anti-migrant government took power last month. Washington Post, "World Digest: July 12, 2018," 12 July 2018 Mr Macron promised to unveil an anti-poverty programme in September, as part of a redesign of France’s welfare state for the 21st century. The Economist, "Emmanuel Macron’s popularity hits a new low," 12 July 2018 Listen, my family is in North Carolina, which has been the one state to successfully pass an anti-trans bathroom bill. Nina Metz,, "Why trans actors should be cast in trans roles," 12 July 2018 Republicans have been pushing an anti-Pelosi message in the 2018 midterms, an attempt to stave off a potential blue wave amid resistance to President Trump. Jason Williams,, "PX column: Aftab Pureval says he won't back Nancy Pelosi for Speaker if elected to Congress," 11 July 2018 The Hollywood elite has gotten involved, too, with the usual anti-Trump suspects immediately entering crisis mode. Brian Flood, Fox News, "Mainstream media will pile on 'conservative' label to Trump's Supreme Court pick, study shows," 10 July 2018

Recent Examples on the Web: Adjective

Royalists and anti-royalists alike were appalled at Trump’s disrespectful gesture. Meagan Fredette,, "Trump Ends Tumultuous U.K. Visit With A Breach In Royal Protocol," 14 July 2018 That, in turn, allows typical anti-tumor immune responses to proceed. Esther Landhuis, Scientific American, "Could Brain Stimulation Slow Cancer?," 13 July 2018 Shiseido has brightening formulas, anti-aging lines, and special moisturizers for extra hydration. The Cut, "How to Get the Most Out of Your Serum," 13 July 2018 The anti-straw brigade has a slick celebrity campaign. Caille Millner,, "A splash of cold water on straw-ban fervor: Many people with disabilities need them," 13 July 2018 Patients with an opioid use disorder treated with a medication such as methadone could experience potentially harmful drug interactions if given certain cardiac or anti-epileptic drugs. Melissa Stein, STAT, "Privacy laws are hurting the care of patients with addiction," 13 July 2018 Those exchanges, which are subject to anti-money laundering regulations, can act as a link to forms of real-world identification, like addresses and bank accounts. Gregory Barber, WIRED, "Someone Found a Use for Bitcoin. Russian Hackers!," 13 July 2018 Some Republicans in Congress have seized upon Mr. Strzok’s anti-Trump text messages to argue the broader investigation by special counsel Robert Mueller is biased. Sadie Gurman, WSJ, "Rod Rosenstein Calls for United Front Against Russian Interference," 13 July 2018 The Crusade Against Birth Control Begins This is also about the time when the U.S. government hopped on the anti-birth-control bandwagon that most of the monotheistic religions had been riding since the start of the modern period, Gordon says. Carolyn Todd, Allure, "The History and Evolution of Birth Control in America," 12 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.

See More

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-

Keep scrolling for more

Learn More about anti

Statistics for anti

Last Updated

17 Sep 2018

Look-up Popularity

Time Traveler for anti

The first known use of anti was in 1788

See more words from the same year

Keep scrolling for more

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

Keep scrolling for more

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).


not any or not one

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
True or False

Test your knowledge - and maybe learn something along the way.


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!