Unforgiven

Now that we have finished the film, I believe I finally know why its called Unforgiven.

Some characters have a certain aspect about themselves that they despise. Munny hates his talent for killing, the Schofield Kid hates that he can't kill, the whores hate that they are powerless, etc. They obviously try to change, yet cannot change that which is impossible. After the Schofield Kid kills the guy who cut up the whore, he decides to stop adventuring. Munny recedes back to his angry killing ways after Ned is tortured and killed. The whores run away from Munny when he goes on his shooting spree, unable to help or stop him. These characters cannot forgive their personalities. Hence why the kid always tries to seem more badass and Munny tries to lessen the nature of his kills.

Other characters, like Little Bill and English Bob hate the world around them. Little Bill dislikes this Western world, attacking assassins and killing Ned. Being the sheriff, Bill believes that he must protect the world from rotten scumbags who come to collect money for kills. English Bob hates America in general. He believes that his mother country of England is better. Numerous times throughout the film, he is seen mocking America. For example, when first introduced, he scoffs at the assassination of the president, saying that if he were a king this would not happen. These characters cannot forgive human society; how they act, the people in it, even their morals.

Essentially all of the characters think something around them is unforgivable. At the start of the film, Munny and Ned think that the guy who cut the whore up was a scumbag. Munny cannot forgive Bill for killing the innocent Ned. Bill hates every assassin on the planet. The whores believe that the man who cut up one of theirs should die. In this movie all of their morals and beliefs clash, ultimately resulting in death and chaos.