The word "more well-proportioned" implies that something has a balanced and harmonious shape or structure. Antonyms for this phrase could include "unevenly proportioned," "disproportionate," or "imbalanced." These words describe objects, people, or ideas that are not properly proportioned or composed, which can lead to an unattractive appearance or inefficient function. An item that is unevenly proportioned may have parts that are too large or too small in relation to one another. Disproportionate refers to something that is not proportional in the normal or expected way. Lastly, imbalanced suggests that something is askew or out of alignment, which can cause instability or a lack of symmetry.