The term "more old world" implies a certain sense of tradition, history, and an appreciation for things of the past. Antonyms for this term may include words like modern, futuristic, or contemporary, which suggest a preference for newness, innovation, and cutting-edge ideas. Other antonyms could include unrefined, coarse, or primitive, which suggest a lack of sophistication, culture, or refinement. In contrast, "more old world" suggests a certain refinement, elegance, and charm associated with classic, time-honored traditions. Ultimately, the choice of antonym will depend on the context and the intended meaning of the phrase.