Un-worldlinesses can be understood as a lack of knowledge or experience of the world. Its antonyms would be worldliness or sophistication, which suggest a deep understanding and familiarity with the world and its workings. A person with worldliness is well-traveled, well-read, and well-educated, possessing a broad and diverse perspective on life. Sophistication, on the other hand, suggests refinement, elegance, and cultural awareness. It is the opposite of being naive, unworldly, or unsophisticated. Thus, to escape from the realm of un-worldliness, one needs to embrace a worldly outlook and strive to develop a sophisticated understanding of the world.