Antagonism (noun)

  1. Active hostility or opposition towards someone or something.
  2. A state of opposition or hostility between people or groups.

Origin:

Late 16th century (in the sense "struggle for superiority"): from french antagonisme or late latin antagonismus, from greek antagōnismos "opposition", from antagōnizesthai "to struggle against", from ant- "against" + agōn "contest".

Examples:

  1. There was a strong antagonism between the two sides.
  2. The antagonism between the two countries has been escalating.
  3. He felt a deep antagonism towards his brother.
  4. The antagonism between the two sides was clearly visible.
  5. The antagonism between the two groups led to a lot of tension.
Some random words: inducement, palmtop, oscillator