adjective [usually ADJECTIVE noun] If you describe something as fancy, you mean that it is special, unusual, or elaborate, for example because it has a lot of decoration.

Haute couture (French for 'high sewing' or 'high dressmaking'; IPA: [ˌoːt kuˈtyʁ]) refers to the creation of exclusive fashions. It is a common term for custom-fitted clothing as produced primarily in Paris but also in other fashion capitals such as New York, London, and Milan.

Remember classy doesn't mean boring or without personality. Dressing classy means dressing elegant and sophisticated. It's also timeless and elegant.