As an artificial word, "crimples" has no clear antonyms. This term, which may describe hair or paper, refers to a specific type of texture or pattern rather than a commonly understood concept. However, one might use antonyms for related terms to understand the opposite of "crimples," such as smooth, straight, or even flat. These terms could be used to describe the opposite of hair that crimples, for example, which might be hair that is straight or sleek. Additionally, antonyms like disheveled or crumpled might represent the opposite of crimples as they describe a messy, unstructured appearance.