Childish in a sentence and paraphrased in a sentence.

Here are examples of the word/phrase "childish" used in a sentence and paraphrased in a sentence...

You're a grown man. Stop being childish please.

You're a grown man. Stop being infantile please.

His childish behaviour will not be tolerated.

His infantile behaviour will not be tolerated.

For someone who is supposed to be old, they some times can act childish.

For someone who is supposed to be old, they some times can act juvenile.

Other Examples...