姿色 (zīsè) literally combines 姿 (zī), meaning 'posture,' 'bearing,' or 'appearance,' and 色 (sè), meaning 'color' or, in this context, 'looks' or 'physical features.' Together, the term refers specifically to a person’s physical beauty—especially facial features and overall attractiveness—as perceived by others. It is not used for inner qualities or charm, but strictly for outward appearance.

This word carries subtle connotations: it often appears in modest, self-deprecating statements (e.g., '我姿色平平' — 'My looks are average') or in critical, objectifying contexts (e.g., judging someone’s eligibility based on appearance). It’s common in informal speech, literature, and media discussions about beauty standards, dating, or casting—but rarely in formal or respectful descriptions of people. Because it focuses narrowly on physicality, using it to describe someone directly can sound blunt or insensitive.