[n] young bird that has just fledged or become capable of flying [n] any new participant in some activity [adj] young and inexperienced; "a fledgling enterprise"; "a fledgling skier"; "an unfledged lawyer"
entrant, fledgeling, fledgeling, freshman, inexperienced, neophyte, newcomer, starter, unfledged
abecedarian, adolescent, alphabetarian, apprentice, arriviste, articled clerk, at half cock, avifauna, baby, baby bird, beginner, bird, bird of Jove, bird of Juno, bird of Minerva, bird of night, bird of passage, bird of prey, birdie, birdlife, birdling,