When it comes to describing something as "more sweetened," there are a few antonyms that could be used to convey the opposite meaning. One such antonym could be "unsweetened," which means without any added sugar or other sweeteners. Another option could be "bitter," which is the opposite of sweet and has a sour or unpleasant taste. "Unsavory" could also be an antonym for "more sweetened," as it refers to something that is not tasty or appealing. Other antonyms for "more sweetened" could include "sour," "acidic," "tart," or "astringent." Depending on the context, one of these words could be used to express the opposite of "more sweetened.