While Merriam-Webster’s definition of a dystopian society is pretty broad, I think there are some key additional components of a society that make it truly dystopian. Merriam-Webster mentions that people tend to live fearful lives in a dystopian society, but they don’t really define the source of this fear. One of the biggest things that defines dystopia for me is the common theme of an oppressive government that causes the people to live in fear. In books like Animal Farm or even Hunger Games, there is a central, oppressive government that keeps a tight grip over their people. The first way they accomplish this is with a strong military to keep the people in check. In the Hunger Games, the Capitol uses an army called “Peacekeepers”, and Napoleon uses a pack of fierce dogs in Animal Farm.
"Hope is the only thing stronger than fear" -Snow #1102dystopia
— Hartley McGuire (@GThmcguire) January 23, 2017
As Snow describes in the Hunger Games movie, hope and fear are extremely powerful emotions which must be controlled precisely. By having an all powerful military, the people have no hope in successfully causing an uprising.
Another major component of dystopian societies that isn’t covered by the definition is their use of propaganda to influence the people. Luckily, many of us are told not to trust everything we read, but in dystopian societies everything said by the government becomes fact. The Treaty of Treason in the Hunger Games is a great example of this. The government tells this epic tale of the struggles that existed before the government existed, then explains how the current situation is all the fault of a previous failed uprising. This is also true in Animal Farm, where the established commandments of their society continue to be changed slightly as the pigs decide that they should be able to behave more and more like the humans that formerly oppressed them. Unfortunately for both of these societies, the people are forced to accept the propaganda as fact, or else face the wrath of the government.