The term "most abated" means to reduce, lessen or diminish something to its lowest level. However, some antonyms for this term are "intensified", "increased" or "amplified", which refer to making something more prominent, stronger or higher than before. Another antonym for "most abated" is "exacerbated", meaning to make something worse or more severe. Alternatively, "aggravated" or "prolonged" can also be used to describe the opposite of "most abated", indicating that something has been made more difficult or extended. Ultimately, the antonyms for "most abated" all point to the notion of making something more significant in a certain way, whether that be in a positive or negative sense.