From Longman Dictionary of Contemporary Englishwell-educatedˌwell-ˈeducated adjective someone who is well-educated has had a lot of education and has a lot of knowledge about many different things
Examples from the Corpus
well-educated• Most of their customers are well-educated.• That is our vision of a well-educated Britain.• Healthy, well-educated children were essential to sustaining a robust economy.• I come from a well-educated family.• By day, this urbane, well-educated man mastered complex problems in a high-tech consulting firm.• Well-educated men and women are marrying each other, and these well-educated wives are carrying on working. 