#1 antagonistic s. [antipathetic, antipathetical] characterized by antagonism or antipathy; "slaves antagonistic to their masters"; "antipathetic factions within the party". wn
#2 antagonistic a. arousing animosity or hostility; "his antagonistic brusqueness"; "Europe was antagonistic to the Unites States". wn
#3 antagonistic a. [incompatible] used especially of drugs or muscles that counteract or neutralize each other's effect. wn
#4 antagonistic s. incapable of harmonious association. wn
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