The phrase "does to a turn" is often used to describe the perfection of a cooked meal or the precision of a task. Antonyms for this phrase could include incomplete, imperfect, or unfinished, which suggest that something is not quite right or requires further attention. Other antonyms might include careless, haphazard or sloppy, indicating a lack of attention to detail or effort. In a broader sense, antonyms for "does to a turn" might include vague, unstructured, or improvised, suggesting a lack of planning or direction. Overall, these antonyms suggest a failure to achieve the level of excellence implied by the original phrase.