The phrase "becoming wrinkled" can be substituted with various synonyms to add diversity to writing. For instance, the term "creasing" or "folding" can be used to describe the formation of surface lines on materials such as clothes and paper. Meanwhile, the term "puckering" may be used when referring to the formation of small, wrinkle-like folds on fabric or skin. The phrase "creasing up" might also be used to describe the act of forming wrinkles on one's forehead, while the term "ruddy" could potentially be employed to describe skin that has developed wrinkles due to natural aging. Additionally, "crumpling" provides an alternative description of the process of wrinkling.