Antonyms for "re-styled," which means to change the appearance or design of something, could include "maintained," "preserved," "kept original," "conserved," or "retained." These terms suggest that the original appearance or design has been left unchanged, whereas re-styled implies a deliberate change. Another antonym might be "neglected," suggesting that no effort has been made to maintain the appearance or design of something. When it comes to fashion, "outdated," "old-fashioned," or "unfashionable" could also be considered antonyms for re-styled. Regardless of the context, antonyms for re-styled emphasize the idea of preserving the original look or design without alteration.