The word "unsightliest" refers to something that is extremely unattractive or unpleasant. Its antonyms include words such as gorgeous, stunning, attractive, charming, lovely, and picturesque. These words are used to describe something that is visually pleasing, captivating, or beautiful. They can be used to describe scenery, buildings, people, or even emotions. Antonyms of "unsightliest" are words that are used to convey positive feelings, while also highlighting the contrast with the negative connotations of "unsightliest." While "unsightliest" implies a sense of ugliness or repulsiveness, its antonyms evoke feelings of positivity and aesthetic pleasure.