Any new participant in some activity
English: newcomer, fledgling, fledgeling, starter, neophyte, freshman, newbie, entrant
fledglingEnglish
fledgling, fledgeling, callow, entrant, fledgeling(a)
Noun
Young bird that has just fledged or become capable of flying
English: fledgling, fledgeling
Adjective
Young and inexperienced
English: fledgling, unfledged, callow
(of a young bird) having acquired its flight feathers
English: fledgling(a), fledgeling(a)