nonprofessional
  (a.)無職業的,無專長的
  Non·pro·fes·sion·al a.
  1. Not belonging to a profession.
  2. Not done by, or proceeding from, professional men; contrary to professional usage; unprofessional.
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  nonprofessional
       adj : not professional; not engaged in a profession or engaging in
             as a profession or for gain; "the nonprofessional wives
             of his male colleagues"; "nonprofessional actors" [ant:
              professional]