The word "re-bated" refers to a discount or deduction taken off the original price of something. It could also mean a decrease in intensity or strength. The antonyms for "re-bated" are "increased," "raised," and "elevated." These terms denote an increase in the price, value or intensity of something. You might use them to describe a situation where a price has gone up, such as when a product becomes more popular. Alternatively, "re-bated" could be used to describe a situation where the intensity or strength of something has been reduced, such as when a person becomes less angry or upset. In this case, the antonyms would be "intensified," "strengthened," or "heightened.