Ruckling is a term that describes the formation of wrinkles or folds, typically on a surface such as clothing or a bedsheet. However, there are several synonyms that can be used instead of ruckling, including crumpling, creasing, puckering, bunching, or folding. Each of these words can be used to describe the same physical phenomenon of irregularities appearing on a surface due to pressure or movement. Depending on the context, one synonym may be more appropriate than another. For example, creasing might describe a smoother, sharper wrinkle than bunching, which tends to imply a more irregular pattern. Regardless of the synonym used, we can all agree that ruckling is a pesky problem we'd all rather avoid.