When we say that something is "over simplifies," it means that it has been reduced to a point of being too simplistic or basic in a way that can be misleading or incorrect. If one wishes to avoid using this term repeatedly, there are other synonyms available that can be used. These include generalizes, trivializes, underestimates, oversimplifies, and reduces. Each of these synonyms conveys a similar idea, that something has been simplified to a point that it can be misleading. It is important to choose the right synonym to convey the intended meaning and context of the message.