The word "most agrestal" suggests a level of rusticity or country-style living. Its antonyms, on the other hand, could connote a more urban or sophisticated way of life. Some possible antonyms for "most agrestal" could be: refined, polished, cultured, urban, cosmopolitan, sophisticated, modern, elegant, suave, or upscale. These words often imply a certain level of worldliness, education, and exposure to different cultural norms and values. Conversely, they might also suggest a detachment from nature, simplicity, or traditional ways of living that are associated with rural or agrarian societies. Therefore, the choice of antonyms for "most agrestal" depends on the context, tone, and purpose of the text.