What term best describes a character opposing the main character?

The term that best describes a character opposing the main character is "antagonist." This character often creates conflict within the story, serving as a rival or obstacle that the protagonist must confront. The presence of the antagonist is crucial for driving the narrative forward and prompting character development in the protagonist, as their struggles and challenges are often central to the storyline.

In literature, the antagonist might embody qualities or values that oppose those of the protagonist, further amplifying the internal and external conflicts faced by the main character. This dynamic enriches the plot, creating tension and engaging the reader as they follow the protagonist's journey in overcoming these challenges.

The other terms do not accurately describe this opposing role. The protagonist is the main character around whom the story revolves, while a supporting character enhances the narrative by contributing to the development of the protagonist or the plot without being the primary focus. A static character remains unchanged throughout the story and does not necessarily oppose the protagonist; rather, they could simply provide a contrast or complement the protagonist’s journey.