The word "un sightlier" refers to something that lacks attractiveness or is unpleasant to look at. Its antonyms, on the other hand, are words that describe things that are visually appealing or beautiful. Examples of antonyms for "un sightlier" include gorgeous, stunning, lovely, charming, attractive, and pleasing. These words are used to describe things that are visually appealing, such as scenery, artwork, or people. They evoke a sense of beauty and elegance, and can be used to describe anything from a stunning sunset to a beautiful person. By using these antonyms, we can paint a vivid picture of something that is visually pleasing to the eye.