The antonyms for "over-supplies" include "shortages," "insufficiencies," and "deficiencies." These words signify a lack of something, whether it be food, water, materials, or resources. Shortages can lead to higher prices, inconvenience, and even famine in extreme cases. Insufficiencies may limit productivity, effectiveness, or quality. Deficiencies can result in inadequate performance, malfunction, or failure. While over-supplies may seem like a good thing, they can also lead to waste, excess, and spoilage. It is important to maintain a balance between meeting demands and avoiding waste or inefficiency, whether in personal or professional contexts.