antagonistic

/ænˌtæɡəˈnɪstɪk/
adjective
  1. Showing or feeling active opposition or hostility toward someone or something.
    • My cat becomes antagonistic whenever a new pet enters the house.
    • The coach's antagonistic attitude made the players feel discouraged.
    • The two politicians were openly antagonistic toward each other during the debate.
  2. Acting in opposition to something; having an opposite or harmful effect.
    • The new policy was antagonistic to the company's goal of reducing waste.
    • Some medications can be antagonistic to each other, reducing their effectiveness.
    • Certain bacteria produce antagonistic substances that kill other microbes.
What does "antagonistic" mean? | whatsthatwordmean | whatsthatwordmean