There are several antonyms for the phrase "haddest on carpet." One possible antonym is "cleared out," meaning to remove all items or obstacles from a space, leaving it empty and clean. Another antonym could be "dressed up," referring to the act of adding decorative items or rearranging furniture to create a visually appealing space. Additionally, "vacuumed up" would be an antonym, as it means to clean a carpet or floor by removing dirt and debris with a vacuum cleaner. Ultimately, the opposite of "haddest on carpet" depends on the intended action, whether it be cleaning, tidying, or beautifying a space.