Hustler is a term that is often used in a negative sense. It refers to someone who is engaged in dishonest or illegal activities in order to make money. There are many synonyms for this word that can be used in different contexts. These include con artist, scammer, fraudster, swindler, trickster, cheat, rogue, and charlatan. Each of these words has a slightly different connotation, but all of them are used to describe someone who is engaged in some form of deceptive activity. It is important to be aware of these synonyms so that you can accurately describe the type of behavior you are witnessing.