infantile
adjective uk/ˈɪn.fən.taɪl/ us/ˈɪn.fən.təl/
disapproving幼稚的，孩子气的
typical of a child and therefore unsuitable for an adult
infantile behaviour 幼稚的行为
Don't be so infantile.
- More examples
- He began to giggle in an infantile way.
- She thought it would be infantile to carry on the pretence.
- I find his threats infantile and stupid.
- There were only 242 cases of infantile AIDS last year, down 73 percent from last year.
- These children are more likely to be diagnosed with infantile autism.
- Poliomyelitis is also called polio or infantile paralysis.