De basements, meaning to elevate or raise up, has several antonyms that convey a completely opposite sense. First and foremost, one of the antonyms of de basements is "lowering" which means to lower or bring down to a lesser level. Other antonyms of de basements include reducing, diminishing, decreasing, and lessening. All these antonyms imply a decrease in the height or elevation of something. Another antonym of de basements is drowning, which means to submerge or sink below a certain level. These antonyms of de basements showcase how the English language is full of opposites and how important it is to understand them in order to communicate effectively.