The antonyms for the word "un-civilized" are words that describe people or societies that are highly civilized and cultured. Words like sophisticated, cultured, refined, polite, educated, and cosmopolitan are all antonyms of "un-civilized." These words imply a high level of social sophistication and refinement, indicating a society that values education, art, and manners. These antonyms describe individuals who value their personal development and growth, as well as the welfare of the community they belong to. They are open-minded individuals who are often curious and tolerant of other cultures and peoples. In summary, the antonyms of "un-civilized" are terms that celebrate intellectual and social sophistication.