The phrase "most well-done" can be described as overcooked or burned. The antonyms for "most well-done" are rare, medium-rare, medium, and medium-well. Rare is used to describe meat that is cooked quickly on high heat, while medium-rare is slightly more cooked but still pink in the center. Medium is a bit more cooked through and pink in the middle, while medium-well is cooked to an even brown color all the way through, but still slightly pink in the center. These different levels of cook are subjective and depend on personal preference, but they offer an array of options for those who prefer their meat less well-done.