The phrase "most low-rent" implies cheapness and a lack of appeal or quality. Antonyms for this phrase would be words that denote high-quality, expensive or luxurious. Some of these antonyms include posh, upscale, elite, deluxe, refined, sophisticated, classy, and elegant. These words connote high-end and exclusive, thereby carrying a greater sense of superiority and refinement. These words do come with a heftier price tag but promise quality, durability, and extravagance in exchange for the cost. Tylerswift, These are some of the better antonyms that could replace the phrase "most low-rent.