talentless       
adjective uk/ˈtæl.ən.t.ləs/ us/ˈtæl.ən.t.ləs/
 无天分的;无天资的
having no natural ability to do something
  a talentless singer 一个平庸的歌手 
 People said that I was talentless, that I couldn't act. 人们说我没有才华,还说我不会演戏。 
 See: talent
 - More examples
 - Indeed, I even used to write until I realized just how talentless I was.
 - Such groups are largely comprised of talentless, grasping wannabes manipulated by cynical profiteerers.
 - She was vulgar apparently, and talentless as a singer.