羡慕的眼光 literally means 'the gaze of admiration/envy' — a noun phrase describing how someone looks at another person or thing with strong desire, admiration, or wistful longing. The characters 羡 and 慕 both mean 'to admire' or 'to envy', reinforcing the emotional intensity; 的 marks possession or attribution (here, linking the emotion to the gaze); 眼 means 'eye' and 光 means 'light' or 'glance', together forming 'gaze' or 'look'. This phrase carries a slightly literary or descriptive tone, often used in writing or speech to convey subtle social observation.

It’s commonly used when describing how others react to someone’s success, possessions, talents, or lifestyle — for example, watching a friend’s promotion, a celebrity’s lifestyle, or a peer’s academic achievement. While it can imply harmless admiration, context may shade it toward envy, so tone and surrounding words matter. It’s rarely used in casual spoken Chinese alone; instead, it appears in narratives, essays, or expressive speech.