There are several antonyms for the phrase "burst seams." These antonyms include intact seams, unbroken seams, solid seams, and seamless. Burst seams occur when the stitching or seams of a fabric tear open due to stress or pressure, causing the fabric to rip apart. In contrast, intact seams refer to a fabric where the seams are in good condition and have not been compromised in any way. Unbroken seams refer to a seamless fabric that has not been sewn together with seams. Solid seams are heavy-duty stitching that is securely in place, while seamless refers to fabrics that have no stitching or seams.