One that opposes another or others, as in a battle, contest, or debate:
A hostile power or force, such as a nation.
A member of the Society of Friends; a Quaker.
A muscle that opposes the action of another muscle, as by relaxing while the other one contracts, thereby producing smooth, coordinated movement.
A person who competes; rival
A personal enemy or opponent.
(Sports) Someone who is a fan of a certain team or sportsperson.
The definition of an assistant is a person in a work setting who is inferior in rank and whose job it is to perform duties for someone else.
The female of various other mammals, such as antelopes, kangaroos, mice, or rabbits.
(Informal) A person opposed to some policy, proposal, action, etc.
The definition of an assailant is a person who attacks and harms another physically or verbally.
Foil is defined as a thin piece of metal, or a sword used in fencing.
Satan is the Devil.
Ally is defined as an individual, country or organization that unites with another.
One that backs a person, group, or enterprise:
(Logic) The relation of exclusion or inclusion which exists between propositions having the same subject and predicate but differing in quality, quantity, or both
A member of an opposition.
A person who fights against a government.
A substance that resists, esp. something applied as a protective coating
Financial or other help.
Find another word for adversary. In this page you can discover 32 synonyms, antonyms, idiomatic expressions, and related words for adversary, like: opponent, enemy, friend, rival, antagonist, competitor, foe, helper, supporter, assistant and disaccordant.