From Longman Dictionary of Contemporary Englishwell-informedˌwell-inˈformed adjective KNOW somethingsomeone who is well-informed knows a lot about one particular subject or about many subjectswell-informed about Most people are not very well-informed about the disease. We had a serious and well-informed debate.
Examples from the Corpus
well-informed• Discussion of politics, political argument, was thus well-informed and critical.• In general, tribunal chairmen are well-informed and familiar with most authorities.• The service-specific-disciplinary management team is in the best position to make well-informed decisions.• If the report is directed to less privileged and well-informed mortals, either avoid it or explain it.• This lifted investors' spirits immensely, as well as filling well-informed politicians' campaign coffers.• We will continue to encourage a wide and well-informed public debate on the electoral system.• "Le Monde' is a newspaper designed for well-informed readers.• According to one well-informed source, the two sides are very near to reaching an agreement.• One had need to be well-informed to travel with that child.• But he was one of the most well-informed, widely read and serious political figures in public life. 