Meaning of “fully-fledged” - Learner’s Dictionary

fully-fledged

adjective [ always before noun ] uk /ˌfʊliˈfledʒd/ UK (US full-fledged)

having finished developing, studying, or establishing yourself:

I won't be a fully-fledged doctor until after the exams.

(Definition of “fully-fledged” from the Cambridge Learner’s Dictionary © Cambridge University Press)