2) young and inexperienced
Synonyms: novice, rookie, nascent, uninitiated; apprentice, beginner, freshman, neophyte, novice, tyro, recruit, rookie; fledge
fledgling <> mature, veteran
I am learning Chinese, but I’m just a fledgling speaker, having studied the language for only six months.
The fledgling mountain climber needed assistance from the more experienced mountaineers.
The course was not recommended for fledgling skiers.
At hockey he's still a fledgling and needs to work on his basic skating skills.