anti

The definition of an anti is a person who has beliefs contrary to another cause or concept.

(noun)

An example of an anti is someone who does not believe that people should have the right to have guns.

Anti is defined as opposed to something.

(preposition)

An example of anti is how Mothers Against Drunk Driving feel about people who drive after drinking.

See anti in Webster's New World College Dictionary

noun pl. antis

Informal a person opposed to some policy, proposal, action, etc.

Origin: < anti-, in various compounds

Informal opposed to; against

against, hostile to, opposed to: antilabor, antislavery
that counteracts, that operates against: antiaircraft
that prevents, cures, or neutralizes: antitoxin
opposite, reverse: antiperistalsis
rivaling: antipope
having the superficial aspect, but not the usual characteristics, of: antihero

Origin: Gr anti-, ant- < anti, against < IE *anti, facing, opposite, near (> L ante, opposite, before) < base *ant-s, front, forehead

See anti in American Heritage Dictionary 4

noun pl. an·tis

A person who is opposed to something, such as a group, policy, proposal, or practice.

adjective

Opposed: “Douglas MacArthur had a coterie of worshipers, balanced off by an equal number . . . who were vehemently anti” (Joseph C. Harsch).

preposition

Opposed to; against.

Origin:

Origin: From anti-

or ant-

prefix

a. Opposite: antimere.
b. Opposing; against: antiapartheid.
c. Counteracting; neutralizing: antacid.
d. Destroying: antiaircraft.
a. Inverse: antilogarithm.
b. Displaying opposite characteristics: antihero.