D defs.my
Entry 1 sense Webster, 1913

Antagonistic

/ăn-tăgˌ-ən-ĭs'-tĭk/ · An·tag·o·nis·tic · IPA /ænˌtæɡ.əˈnɪs.tɪk/
01 a. Opposing in combat, combating; contending or acting against; as, antagonistic forces.
  1. 1.
    Opposing in combat, combating; contending or acting against; as, antagonistic forces.
    “They were distinct, adverse, even antagonistic.” Milman.