full-fledged vs overdue

full-fledged

adj
  • Having all its feathers; able to fly. 

  • Having full qualification, credentials or preparation; entire; real. 

overdue

adj
  • Late; especially, past a deadline or too late to fulfill a need. 

How often have the words full-fledged and overdue occurred in a corpus of books? (source: Google Ngram Viewer )