antagonistic

(s) indicating opposition or resistance counter,
(s) characterized by antagonism or antipathy
- slaves antagonistic to their masters
- antipathetic factions within the party
antipathetic, antipathetical,
(a) arousing animosity or hostility
- his antagonistic brusqueness
- Europe was antagonistic to the Unites States
(a) used especially of drugs or muscles that counteract or neutralize each other's effect incompatible,
(s) incapable of harmonious association

counter antipathetic antipathetical incompatible

conciliative conciliatory interactive synergistic

antagonistically antagonistic muscle