Aghast at the board's childish behavior, a booming voice suddenly rose above the others.

Yes, I do confess to a fair amount of childish behavior.

A kind of miniature adult as he'd grown up, surrounded by children and childish behavior.

His actions as president are very serious although sometimes he may conduct in some childish behavior.

This is childish behavior and has nothing to do with great love.

The childish behavior isn't attractive, but at least this parent and child speak the same language.

She'd known that it was childish behaviour on her part, but she hadn't been able to help herself.

Older teens may seem mature at times, but they often will still have periods of childish behavior.

A third reason not to make kindergarten so academic is that it turns normal childish behavior into an illness.

Let us not be judged by the childish behavior of our youth.