Definitions:
Overqualified:
- having qualifications that exceed the requirements of a particular job. "i am overqualified for the clinical practice for which I currently work."
Mastery: "Mastery is the urge to get better and better at something that matters." - Daniel Pink
- comprehensive knowledge or skill in a subject or accomplishment. "she played with some mastery"
- the action or process of mastering a subject or accomplishment. "a child's mastery of language"
- expert skill or knowledge in a particular field.
- a person who has a comprehensive and authoritative knowledge of or skill in a particular area. "experts in child development"
- having or involving authoritative knowledge. "he had received expert academic advice"