definition of
antagonistic

[1] #1 antagonistic s. [antipathetic, antipathetical] characterized by antagonism or antipathy; "slaves antagonistic to their masters"; "antipathetic factions within the party". wn

[2] #2 antagonistic a. arousing animosity or hostility; "his antagonistic brusqueness"; "Europe was antagonistic to the Unites States". wn

[3] #3 antagonistic a. [incompatible] used especially of drugs or muscles that counteract or neutralize each other's effect. wn

[4] #4 antagonistic s. incapable of harmonious association. wn