noun \ˈad-və(r)-ˌser-ē, -ˌse-rē\

: an enemy or opponent

plural ad·ver·sar·ies

Full Definition of ADVERSARY

:  one that contends with, opposes, or resists :  enemy
ad·ver·sari·ness noun

Examples of ADVERSARY

  1. His political adversaries tried to prevent him from winning the nomination.
  2. <our old cat seemed to consider the new kitten an adversary>
  3. He's a very smart criminal who pushes emotional buttons to get what he wants. He's quite a worthy adversary for Mac and the team. —TV Guide, 2-8 June 2008


(see adverse)
First Known Use: 14th century

Rhymes with ADVERSARY

actuary, airy-fairy, ancillary, antiquary, apiary, arbitrary, aviary, axillary, bacillary, beriberi, bestiary, biliary, black raspberry, Bloody Mary, boysenberry, breviary, budgetary, calamari, calamary, candleberry, Canterbury, capillary, carpellary, cassowary, catenary, cautionary, cavitary, cemetery, centenary, certiorari, checkerberry, chinaberry, cometary, commentary, commissary, condottiere, coralberry, corollary, coronary, culinary, customary, dictionary, dietary, dignitary, dromedary, dysentery, elderberry, emissary, estuary, farkleberry, February, formulary, fragmentary, fritillary, functionary, funerary, honorary, huckleberry, intermarry, janissary, January, lamasery, lapidary, lectionary, legendary, legionary, lingonberry, literary, loganberry, luminary, mammillary, mandatary, maxillary, medullary, mercenary, miliary, military, millenary, milliary, millinery, missionary, momentary, monastery, mortuary, necessary, ordinary, ossuary, partridgeberry, pensionary, pigmentary, planetary, Pondicherry, prebendary, presbytery, pulmonary, quaternary, red mulberry, reliquary, rowanberry, salivary, salmonberry, salutary, sanctuary, sanguinary, sanitary, secondary, secretary, sedentary, seminary, silverberry, solitary, sour cherry, stationary, stationery, statuary, subcontrary, sublunary, sugarberry, sumptuary, syllabary, temporary, tertiary, thimbleberry, Tipperary, Tom and Jerry, topiary, tributary, tutelary, Typhoid Mary, unitary, urinary, vestiary, Virgin Mary, visionary, voluntary, vulnerary, Waterbury, whortleberry, winterberry


adjective \ˈad-və(r)-ˌser-ē, -ˌse-rē\

Definition of ADVERSARY

:  of, relating to, or involving an enemy or adversary
:  having or involving antagonistic parties or opposing interests <divorce can be an adversary proceeding>

Examples of ADVERSARY

  1. <there was a long history of adversary dealings between the two nations>
  2. The quest for air superiority would come to include strikes on adversary airfields, but only as part of a larger effort also involving such staples as defensive fighter interception, offensive air sweeps, and escort missions with bombers designed to draw enemy fighters into battle. —John Prados, MHQ : The Quarterly Journal of Military History, Spring 1996


(see adverse)
First Known Use: 14th century


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