antagonism - definition and synonyms

noun [countable/uncountable] 

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/ænˈtæɡəˌnɪz(ə)m/
  1. 1
    a strong feeling of disliking someone, usually a feeling that has existed for a long time
    antagonism between:

    the growing antagonism between the two groups

    antagonism towards/to:

    It was difficult to explain their antagonism towards strangers.

  2. 2
    opposition to something such as an idea or proposal