The idiom "pushing up daisies" means to be dead and buried. Therefore, its antonyms are words and phrases that suggest being alive, thriving, or active. For instance, "full of life," "in the prime of life," "hale and hearty," "healthy and robust," are some of the possible antonyms. Additionally, phrases like "living large," "being on top of the world," "at the peak of one's career," "enjoying one's golden years," are also suitable antonyms for "pushing up daisies." Ultimately, the antonyms for this idiom emphasize vitality, energy, well-being, and success, which are the exact opposite of what it means to be buried six feet under.