The antonyms for the word "un-reconstructed" include terms such as refined, sophisticated, polished, modern, updated, and advanced. These words describe something that has undergone a transformation or has been updated to meet modern standards. While "un-reconstructed" refers to something that is old-fashioned, unaltered or unmodified in any way, its antonyms convey a sense of vitality and growth. For instance, a sophisticated urban landscape contrasts with an un-reconstructed rural setting. Similarly, an elegant mansion is contrasted with an unaltered old house. In summary, antonyms of "un-reconstructed" bring to mind positivity, development, and change.