'antagonistic' definitions:

Definition of 'antagonistic'

From: WordNet
adjective
Indicating opposition or resistance [syn: antagonistic, counter]
adjective
Characterized by antagonism or antipathy; "slaves antagonistic to their masters"; "antipathetic factions within the party" [syn: antagonistic, antipathetic, antipathetical]
adjective
Arousing animosity or hostility; "his antagonistic brusqueness"; "Europe was antagonistic to the Unites States" [ant: conciliative, conciliatory]
adjective
Used especially of drugs or muscles that counteract or neutralize each other's effect [syn: antagonistic, incompatible] [ant: interactive, synergistic]
adjective
Incapable of harmonious association

Synonyms of 'antagonistic'

From: Moby Thesaurus