Someone who is unqualified or insufficiently skillful.
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.
Showing a lack of professionalism, experience or talent.
Non-professional.
Created, done, or populated by amateurs or non-professionals.
A person or thing that is outstandingly bad.
Another unspecified item, perhaps not yet known or decided upon.
Something exceptional, out of the ordinary, unusual.