1. Pertaining to a monarch or the family of a monarch; regal: Susan's friend said that she had a royal ancestry and that she was related to a prince of long ago!
2. Descriptive of a person having the conduct or bearing of a nomarch: Little Jenifer tried to act like a royal princess in the play she and her friends put on for her parents.
3. Regarding something above the normal size, quality, status; position: After Jane came in from doing shopping on a hot day, she had a royal headache and went straight to bed in her cool bedroom.