The word "disfeature" means to deface or mar the appearance of something. However, there are a number of antonyms that can be used to describe the opposite effect of disfeaturing. Some possible antonyms include beautify, enhance, adorn, embellish, refine, and perfect. These words suggest that the thing in question has been improved or enhanced in some way, whether it's through the addition of decorative elements, the refinement of its design, or simply by making it look better overall. By using these antonyms, we can convey a positive message about the thing in question, rather than focusing on its flaws or negative aspects.