Crinklier is a term that describes something that is full of wrinkles or creases. There are several synonyms that can be used to describe crinklier, including rumply, rumpled, and creased. These terms can be used to describe several different types of objects or materials, such as fabrics, paper, or skin. Other potential synonyms for crinklier include corrugated, wrinkled, and crumpled. These terms can all be used to describe something that is not smooth or flat, and may have been folded, scrunched up, or otherwise manipulated in a way that results in visible creases or folds.