debutant
/ˈdeɪbjʊtɑːnt/
noun
- A person who is making a first public appearance or beginning a career, especially in sports, the arts, or society.
- The young tennis debutant surprised everyone by winning her first match.
- As a debutant in the orchestra, he was nervous but played beautifully.
- The debutant at the charity ball was introduced to the guests with great ceremony.
Antonyms