单词：amateurish 

形容词

• 
  [1.a.amateurish] (同义词:[amateurish( adj. 业余的, 非职业的, 不熟练的 )]  [amateur( n. 业余爱好者, 业余艺术家 )]  [inexpert( adj. 不熟练的 n. 生手 )]  [unskilled( adj. 不熟练的, 拙劣的, 无需技能的 )]  )
• 
  注释列句：lacking professional skill or expertise; "a very amateurish job"; "inexpert but conscientious efforts"; "an unskilled painting"
• 近义词 -> [unprofessional( adj. 外行的, 非职业性的 )] 
  派生词 -> [amateurishness]