neophyte

noun4

1. •
   A beginner; a person who is new to a subject, skill, or belief.

   • In this scene Lupita, the neophyte, is counselled by more weathered professionals about the rules and regulations of whoring. — 1980
2. •
   A novice (recent convert); a new convert or proselyte; a new monk.
3. •
   Among the early Christians, and still among the Roman Catholics, one who has recently embraced the Christian faith, and been admitted to baptism, especially those converts from heathenism or Judaism.
4. •
   A plant species recently introduced to an area (in contrast to archaeophyte, a long-established introduced species).