The antonyms for the word "more boosted" are "lessened" or "reduced." When something is lessened, it means that it is decreased in intensity or amount. On the other hand, when something is reduced, it means that it is made smaller or lesser in size, quantity, or degree. These antonyms are often used in opposite contexts, such as in the case of boosting or lowering a person's morale or energy levels. Therefore, it is important to consider the context in which the antonyms are being used before deciding which one to use. In summary, the antonyms for "more boosted" are "lessened" or "reduced," meaning a decrease in intensity or amount.