(adjective) Describing something or someone that is fully developed after a period of training or growth.
EXAMPLE: After getting my MBA and completing my company's year-long training program, I was finally going to become a full-fledged business executive.
Common expression describing someone who has difficulty working effectively in the morning. (NOTE: always used in this negative form)
EXAMPLE: I prefer to work late into the evening when I'm at my most productive, because I am definitely not a morning person.