The term "up-raises" implies an action of lifting or elevating something. Its antonyms would be words that indicate the opposite meaning, like lowering or declining. Some possible antonyms for up-raises could be words like lowers, descends, drops, subsides or falls. These words denote the act of bringing something down or reducing its height or level. Alternately, words like depression, decline, decrease, or diminution can also serve as antonyms for up-raises as they indicate the reduction of something's value or intensity. Therefore, depending on the context, the antonyms for up-raises can vary, but the common idea is that they all signify a lowering or decline in some form.