competitive

from WordNet (r) 3.0 (2006)

competitive
    adj 1: involving competition or competitiveness; "competitive
           games"; "to improve one's competitive position" [syn:
           {competitive}, {competitory}] [ant: {noncompetitive}]
    2: subscribing to capitalistic competition [syn: {competitive},
       {free-enterprise(a)}, {private-enterprise(a)}]
    3: showing a fighting disposition; "highly competitive sales
       representative"; "militant in fighting for better wages for
       workers"; "his self-assertive and ubiquitous energy" [syn:
       {competitive}, {militant}]

from The Collaborative International Dictionary of English v.0.48

Competitive \Com*pet"i*tive\, a.
   Of or pertaining to competition; producing competition;
   competitory; as, a competitive examination.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

48 Moby Thesaurus words for "competitive":
      adversary, adversative, adverse, alien, antagonistic, anti,
      antipathetic, antithetic, clashing, competing, con, conflicting,
      contradictory, contrary, counter, cross, cutthroat, disaccordant,
      dissentient, emulous, enemy, fractious, hostile, in competition,
      in rivalry, inimical, negative, noncooperative, obstinate,
      opponent, opposed, opposing, opposite, oppositional, oppositive,
      oppugnant, overthwart, perverse, recalcitrant, refractory,
      repugnant, rival, rivaling, uncooperative, unfavorable, unfriendly,
      unpropitious, vying