[adj] incapable of harmonious association
[adj] used especially of drugs or muscles that counteract or neutralize each other's effect
[adj] arousing animosity or hostility; "his antagonizing brusqueness"; "a speech that was antagonizing to many voters"
[adj] characterized by antagonism or antipathy; "slaves antagonistic to their masters"; "antipathetic factions within the party"
[adj] indicating opposition or resistance