`不修边幅` holds a fascinating dual connotation in Chinese culture that differs from simply being “sloppy” in the West. On one hand, it can be a straightforward criticism, especially in contexts where appearance is important, such as business meetings or formal events. Conformity and presenting a neat, respectable image are generally valued. On the other hand, the idiom is famously associated with the “brilliant but eccentric” archetype. It's often used to describe talented artists, writers, academics, and scientists who are so consumed by their passion and intellectual pursuits that they neglect their appearance. In this light, being `不修边幅` can be a sign of authenticity and a rejection of superficiality. It suggests the person's mind is on a “higher plane.” This can be compared to the Western “absent-minded professor” or “mad scientist” stereotype. However, the Chinese concept can carry a stronger undercurrent of quiet respect. It aligns with the Daoist value of prizing the natural and unadorned (朴素, pǔsù) over the artificial. The focus is less on rebellion (like a “punk” aesthetic) and more on a simple lack of attention due to a profound inner world.
`不修边幅` is a common idiom used in everyday conversation. It's descriptive and less harsh than calling someone a “slob.”