Non-civil is a word that describes something that is not related to civilization or human society. Some antonyms for non-civil are civil, developed, cultured, and refined. Civil refers to something that is related to the society, culture, or governance of a particular region. Developed is an antonym for non-civil because it indicates that something has been advanced or progressed, and is therefore sophisticated or cultured. Similarly, cultured means that something is refined or polished, having been developed over time with significant effort, while refined suggests that something is elegant or polished, showing a high degree of taste and sophistication. All of these antonyms indicate the opposite of non-civil, and rather suggest a level of civilization or advancement.