inexpert       
adjective uk/ɪˈnek.spɜːt/ us/ˌɪnˈek.spɝːt/
 不熟练的;非内行的
having little skill
  She had made an inexpert attempt to repair the car. 她笨手笨脚地试图修理这辆汽车。 
 Synonyms: amateur amateurish incompetent ineptunskilled
Opposites: expert skilled