The antonyms for the word "loosefitting" are commonly referred to as "tightfitting," "skinny," or "slim fit." These words are used to describe clothing that fits snugly against the body, emphasizing its curves or contours. If someone is looking for a more form-fitting outfit, they might opt for tightfitting clothes that show off their figure. "Skinny" or "slim fit" is often used to describe pants, jeans, or tops that are designed to hug the body, providing a sleek and streamlined look. These antonyms are popular in fashion and style, emphasizing the importance of well-fitted clothing to enhance a person's appearance.