I like his childish innocence.
His childish habits were disliked by us.
He is known for his childish acts.
This is not a childish affair.
It is a childish thing to do.
He can be very childish at times.
Why do you indulge in such childish behaviour?
The childish behavior of you is self evident.
What a silly childish comment!
It is childish on your part.
He was ridiculed for his childish acts.
Don’t be childish.
You have a childish behaviour.
When I became a man, I gave up childish ways.
It was childish of him to behave like that.
It is a very funny but childish game.
I hear your childish laughter.
At a certain age the child is grown and puts away childish things.
It is a childish term.
What a childish prank!
Why are you being so cruel and childish?
The way of your thinking is very childish.
What is this childish contraption?
He always keeps his childish innocence.
This is childish obstinacy.