adj. 1. having reached full development with fully grown adult plumage; ready to fly; -- of a bird. fledgling Syn. -- fully fledged. [ WordNet 1.5 ]
2. having gained full status; -- of persons in respect to human roles; as, a full-fledged lawyer; by the age of seventeen I was a full-fledgedatheist. Syn. -- fully fledged. [ WordNet 1.5 ]