The word "unindustrial" refers to lack of industrial development. Therefore, it's opposite can be interpreted as the presence or existence of industrialization. The antonyms for "unindustrial" can be categorized into different groups such as developed, advanced, urbanized, modernized, industrialized, progressive, and developed countries. On an individual term, the word could be antonymous with industrial, developed, urban, modern, and technologically advanced countries or regions. For example, Japan, Germany, and the US are countries that are considered antonymous to unindustrial. In summary, antonyms for "unindustrial" describe countries or regions that are established, developed, and experienced in industrialization, technological innovation, and urbanization.