1. belonging to or characteristic of a small group of people who have special knowledge, interests, or social status
2. having less density than normal; thin
Usage: technical; often used of air or gases

Examples

• The discussion of quantum physics was too rarefied for most students to follow.
• She moved in rarefied social circles that few could access.
• The rarefied atmosphere of the academic conference intimidated newcomers.
• At high altitudes, the air becomes increasingly rarefied.
• His taste in art was considered rarefied and difficult to understand.
• The rarefied world of professional ballet requires years of training.