Antonyms for the term "most well-turned" could include awkward, clumsy, ungainly, unrefined, or coarse. These words imply a lack of grace, elegance, and skillfulness that the word "well-turned" characterizes. They may describe something that is poorly crafted or executed aesthetically, such as an art piece, a piece of furniture, or a piece of writing. The opposite of "most well-turned" can be seen as an absence of smoothness and fluidity, indicating a roughness, heaviness, or clumsiness. While "most well-turned" connotes excellence and artistry, its antonyms often imply mistakes, flaws, and a lack of finesse.