man·qué
adjective/ˈmɒŋkeɪ/
/mɑːŋˈkeɪ/
[after noun] (from French, formal or humorous)- used to describe a person who hoped to follow a particular career but who failed in it or never tried it
愿望落空；壮志未酬；未成功 - He's really an artist manqué.
他很想当艺术家，但未能如愿。
- He's really an artist manqué.