amateur

Etymology

Borrowed from French amateur, from Latin amātor (“lover”), from amāre (“to love”).

noun

1. (now rare) A lover of something.
   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.
   The contest is only open to amateurs.
3. Someone who is unqualified or insufficiently skillful.
   The entire thing was built by some amateurs with screwdrivers and plywood.

adj

1. Non-professional.
2. Created, done, or populated by amateurs or non-professionals.
   amateur sports
3. Showing a lack of professionalism, experience or talent.
   Duct tape is a sure sign of amateur workmanship.