The opposite of "sets order" can be defined in several ways, depending on the context. In some cases, it can be disarray, which means a state of disorder and confusion. Disorder is another antonym that suggests a lack of organization, structure, and control. Chaos is a term that describes a situation of complete confusion and unpredictability, where there is no sense of order. On the other hand, spontaneity is an antonym that suggests acting on impulse or without planning, which can also contrast with setting order. Lastly, entropy refers to a state of increasing disorder and randomness, which is the opposite of the organized and structured nature of setting order.