Definition of "amateur"

amateur

/ˈæ.mə.tə/

noun
plural amateurs
1. (now rare) A lover of something.
  Quotations
  he conducted extensive correspondence on wines with European suppliers, employing a wine vocabulary familiar to any modern amateur of wines.
  2006, John Hailman, Thomas Jefferson on Wine, University of Mississippi, published 2006, page x
2. A person attached to a particular pursuit, study, science, or art (such as music or painting), especially one who cultivates any study, interest, taste, or attachment without engaging in it professionally.
3. Someone who is unqualified or insufficiently skillful.
adjective
comparative more amateur, superlative most amateur
1. Non-professional.
2. Created, done, or populated by amateurs or non-professionals.
3. Showing a lack of professionalism, experience or talent.