Agonist(n.) One who contends for the prize in public games.
Agonistic(a.) Alt. of Agonistical
Agonistical(a.) Pertaining to violent contests, bodily or mental; pertaining to athletic or polemic feats; athletic; combative; hence, strained; unnatural.
Agonistically(adv.) In an agonistic manner.
Agonistics(n.) The science of athletic combats, or contests in public games.

Words within agonistics