The word "over supplies" refers to an excess amount of goods or resources. The antonyms for this word are under supplies or shortage. When there is an under-supply, there are not enough resources to meet the needs of the demand, whereas, in case of a shortage, the supply is insufficient to meet the needs of consumption. These antonyms represent a state of imbalance in the availability of resources, and can lead to several negative outcomes like price hikes, loss of competitive advantage and marketability, and even socio-economic unrest. It is important to maintain a balance between supply and demand to ensure efficient and effective utilization of resources.