The phrase "bursting seams" typically implies an overfilled or overstuffed object, often resulting in the tearing of the garment or material. Antonyms for this phrase would be words that express emptiness, hollowness, or vacuity, such as "empty," "hollow," "unfilled," "unoccupied," or "void." Other antonyms could include "loose," "relaxed," "spacious," "slack," or "roomy," which indicate that there is enough space to accommodate the material without any pressure or force. Using these antonyms in a different context can bring about a sense of tranquility and calmness, in contrast to the chaotic image that "bursting seams" typically portrays.