The antonyms for the phrase "popping one balloon" could include gentle handling, preservation, or protection. These words describe actions that would ensure the balloon remains intact rather than being burst. Other antonyms could include inflation, filling, or expansion, which all suggest adding to the balloon rather than deflating or puncturing it. Additionally, words like reparation, mending, or repairing could be viewed as antonyms since they involve fixing or restoring an object rather than damaging it. In any case, the antonyms for popping one balloon highlight actions that protect, repair, or enhance the object in question rather than destroy it.