What this suffix does
-connected forms compound adjectives that describe the quality and extent of a person's social networks and professional relationships. Well-connected, poorly-connected, highly-connected, loosely-connected, strongly-connected — each compound describes the degree to which a person has access to influential relationships and the power that comes with them. "Well-connected" is one of the most important compound adjectives in political, journalistic, and social writing: to be well-connected is to have access to people who have access to power, which is itself a form of power.