childishadjectiveuk us /ˈtʃaɪl.dɪʃ/
- How very childish of her to refuse to speak to me!
- I've had enough of your childish pranks.
- "Stop this childish nonsense at once!" he shouted furiously.
- Don't be so childish - just give me the keys and stop messing about.
- She said we should be ashamed of our childish behaviour - fighting over who got the last strawberry.