Definitions

1. noun

A handsome young man, especially one who is admired for his beauty; a beautiful or charming young man.

“He was the endymion of the party, drawing admiring glances from everyone.”

2. proper noun

The title character in a poem by John Keats, a beautiful young man who is eternally youthful and handsome.

“The poem ‘Endymion’ by John Keats is a classic of English literature.”