Antagonist

What is a antagonist?
A antogonist is the rival to the protagonist. In the book Lord of the Flies, Jack is the antagonist to Ralph who is the protagonist. Here I got the definition of antagonist. You can tell that Jack is the antagonist because he is always fighting with the protagonist, Ralph. Jack always wants to hunt when Ralph needs Jack and his choir boys to help build fires and shelter. Eventually Jack goes off on his own. You could read more about the story line in the Summaries.