Goose up can be defined as raising or increasing something. Antonyms for this phrase can be words like decrease, lessen, reduce, lower, and diminish. These words indicate a process of making something smaller or decreasing its quantity or intensity. For instance, instead of goose up the prices, we can lower or reduce the prices to attract more customers. Rather than goose up the tension in a room, we can decrease or lessen it by practicing healthy communication. Therefore, antonyms for goose up are essential in articulating the opposite meaning and conveying a precise message in our conversations.