babyish [ˈbeɪbiɪʃ]

例句:

• I'm ashamed of the babyish nonsense I write.
  我对自己写出这么幼稚的东西感到羞愧。
  
• They told him it was babyish to cry.
  他们对他说,哭是幼稚的.
  
• Now that Ned can read he finds his early picture books too babyish.
  由於内德已经识字,他觉得他以前的那些画册都太浅了.
  
• "It's very childlike, almost babyish," she said.
  来自BBC
• His eyes are wide open, and there's a frown on his babyish forehead.
  来自NEWYORKER