Antagonism refers to a state of opposition or hostility between individuals or groups. It often arises when one party's actions or beliefs conflict with those of another, leading to tension or conflict. This can occur in various contexts, such as personal relationships, competitive environments, or even within ecosystems where different species compete for resources. In psychology, antagonism can describe certain personality traits characterized by a tendency to be argumentative, uncooperative, or resentful. This trait can affect interpersonal relationships and social dynamics. Understanding antagonism is important in fields like conflict resolution, psychology, and sociology, as it helps to address and manage disputes effectively.