transcription, транскрипция: [ tʃaɪldɪʃ ]
1.
Childish means relating to or typical of a child.
...childish enthusiasm.
ADJ : usu ADJ n
2.
If you describe someone, especially an adult, as childish , you disapprove of them because they behave in an immature way.
...Penny’s selfish and childish behaviour...
Don’t be so childish.
= immature
ADJ [ disapproval ]