Synonyms of adversary

adversary 1 of 2

adjective

as in hostile

marked by opposition or ill will

there was a long history of adversary dealings between the two nations

Synonyms & Similar Words

• hostile
• negative
• adverse
• adversarial
• contentious
• antagonistic
• unfavorable
• mortal
• opposed
• inimical
• unpleasant
• unfriendly
• inhospitable
• conflicting
• antipathetic
• unsympathetic
• militant
• malicious
• jaundiced
• belligerent
• pugnacious
• resisting
• combative
• icy
• contrary
• bellicose
• disagreeable
• frigid
• distant
• truculent
• quarrelsome
• scrappy
• clashing
• antisocial
• disputatious
• malevolent
• vindictive
• cold
• malignant
• argumentative
• disapproving
• hateful
• bitter
• rude
• biased
• unkind
• spiteful
• virulent
• prejudiced
• malign
• discourteous
• surly
• inconsiderate
• acrimonious
• unmannerly
• uncivil
• cool
• impolite
• unsociable
• rancorous
• impertinent
• opprobrious
• unloving
• ill-mannered
• despiteful
• ill-bred

Antonyms & Near Antonyms

• sympathetic
• friendly
• civil
• social
• hospitable
• amiable
• pleasant
• gracious
• warm
• amicable
• nonhostile
• cordial
• affable
• gregarious
• genial
• companionable
• convivial
• neighborly
• loving
• affectionate
• nonantagonistic
• sociable
• kind
• sweet
• good-natured
• favorable
• benign
• kindly
• devoted
• nice
• understanding
• agreeable
• comradely
• good-tempered
• accepting
• empathetic
• welcoming
• warmhearted
• approving

adversary

2 of 2

noun

ˈad-vər-ˌser-ē 

1

as in enemy

one that is hostile toward another

our old cat seemed to consider the new kitten an adversary

Synonyms & Similar Words

• enemy
• opponent
• foe
• hostile
• antagonist
• attacker
• archenemy
• competitor
• rival
• combatant
• assailant
• invader
• nemesis
• archfoe
• bête noire
• ill-wisher
• bane
• emulator

Antonyms & Near Antonyms

• friend
• partner
• fellow
• buddy
• ally
• pal
• chum
• accomplice
• colleague
• mate
• compadre
• comrade
• crony
• collaborator
• hearty
• musketeer
• disciple
• friendly
• amigo
• abettor
• adherent
• follower
• hail-fellow
• hail-fellow-well-met
• benefactor
• supporter
• exponent
• sympathizer
• hobnobber
• confederate
• backer
• well-wisher

2

as in opponent

one that takes a position opposite another in a competition or conflict

our adversaries in tomorrow's meet are from one of the top schools in the league

Synonyms & Similar Words

• opponent
• foe
• rival
• competitor
• enemy
• antagonist
• contestant
• match
• nemesis
• attacker
• combatant
• assailant
• archenemy
• invader
• equal
• curse
• bane
• bête noire

Antonyms & Near Antonyms

• partner
• ally
• accomplice
• advocate
• champion
• proponent
• supporter
• exponent
• confederate
• sympathizer

Example Sentences

Recent Examples of adversary

Adjective

Yet distillation has been controversial when used by third parties — particularly in adversary nations like China or Russia — to replicate proprietary work without authorization. — Bloomberg, Mercury News, 7 Apr. 2026

Such sensitive information, along with financial information and private messages, is helpful for adversary intelligence agencies to use as leverage for blackmail or coercion. — Dan Morse, Alex Horton, Anchorage Daily News, 30 Sep. 2022

Noun

Trump may gloat about the earnings, but that did nothing to address the very real national security concerns with handing our greatest adversary a leg up in the artificial intelligence race. — Elizabeth Shackelford, Chicago Tribune, 7 Aug. 2026

Those same capabilities let defenders spot flaws and build patches before adversaries gained access to AI as advanced as Mythos. — Beatrice Nolan, Fortune, 5 Aug. 2026

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