anti-


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anti-

(word root) against
Examples of words with the root anti-: antichrist, antiestablishment
Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embree

anti-

or ant-
pref.
1.
a. Opposite: antimere.
b. Opposing; against: antiapartheid.
c. Counteracting; neutralizing: antacid.
d. Destroying: antiaircraft.
2.
a. Inverse: antilogarithm.
b. Displaying opposite characteristics: antihero.

[Greek, from anti, opposite; see ant- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

anti-

prefix
1. against; opposing: anticlerical; antisocial.
2. opposite to: anticlimax; antimere.
3. rival; false: antipope.
4. counteracting, inhibiting, or neutralizing: antifreeze; antihistamine.
5. designating the antiparticle of the particle specified: antineutron.
[from Greek anti]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

an•ti

(ˈæn taɪ, ˈæn ti)

n., pl. -tis.
a person who is opposed to a particular practice, party, policy, action, etc.
[1780–90; anti-]

anti-

a prefix meaning “against, opposed to, prejudicial to” ( anti-abortion; anti-Semitic; antislavery), “preventing, counteracting, or mitigating” ( anticoagulant; antifreeze), “destroying or disabling” ( antiaircraft; antipersonnel), “identical to in form or function, but lacking, opposite, or contrary in essential respects” ( anticlimax; antihero; antiparticle), “an antagonist or rival of” ( Antichrist; antipope), “situated opposite” ( Anti-Lebanon). Also, before a vowel,ant-.
[Middle English < Latin < Greek, prefixal use of antí; akin to and]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

anti-

A prefix whose basic meaning is "against." It is used to form adjectives that mean "counteracting" (such as antiseptic, preventing infection). It is also used to form nouns referring to substances that counteract other substances (such as antihistamine, a substance counteracting histamine), and nouns meaning "something that displays opposite, reverse, or inverse characteristics of something else" (such as anticyclone, a storm that circulates in the opposite direction from a cyclone). Before a vowel it becomes ant-, as in antacid.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations

anti-

[ˈænti-] prefixanti-anti-abortion [ˌæntiəˈbɔːrʃən] adj [+ activist, movement, group, law] → antiavortementanti-abortionist antiabortionist [ˌæntiəˈbɔːrʃənɪst] nadversaire mf de l'avortement; (more militant)militant(e) m/f contre l'avortementanti-aircraft antiaircraft [ˌæntiˈɛərkrɑːft] (US) adj [missile, fire, guns, artillery] → antiaérien(ne)anti-aircraft defence (British) anti aircraft defense (US) antiaircraft defense (US) ndéfense f contre avions, DCA fanti-ballistic antiballistic [ˌæntibəˈlɪstɪk] adjantibalistique
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

anti-

(ӕnti) prefix
1. against, as in anti-aircraft.
2. the opposite of, as in anticlockwise.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
In the month of August, 1841, I attended an anti- slavery convention in Nantucket, at which it was my happiness to become acquainted with FREDERICK DOUGLASS, the writer of the following Narrative.
Class hatred is anti-social, and, it seems to me, anti- socialistic."
She brought him the anti- tobacco remedy, purchased out of her glove money, and in a few days forgot all about it.