in·ex·pert /(ˌ)ɪˈnɛkˌspɚ/
  (a.)不熟練的生手
  In·ex·pert a.
  1. Destitute of experience or of much experience. [Obs.]
  2. Not expert; not skilled; destitute of knowledge or dexterity derived from practice.
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  inexpert
       adj : lacking professional skill or expertise; "a very amateurish
             job"; "inexpert but conscientious efforts"; "an
             unskilled painting" [syn: amateurish, amateur, unskilled]