Words similar to childish

Example sentences for: childish

How can you use “childish” in a sentence? Here are some example sentences to help you improve your vocabulary:

This all seems childish, I know.
So why is he timeless, while Self's sendups of PC already seem dated, as if he'd jotted them down in a fit of childish pique in 1991?
The threesome of Harry, Ron Weasely, and Hermione Granger (who is likely to be everybody's favorite character) are believably mischievous, competitive, vain, and, for all their intelligence, prone to childish foolishness (e.g. the clever, studious Hermione's stubborn crush on the egotistical charlatan Professor Lockhart in Chamber of Secrets ).
It is: disgusting, childish, and unnecessary.
"It would be unfair to call this a nursery rhyme; it was childish rather than childlike," writes Donald Clarke in The Rise and Fall of Popular Music . "Nobody knows how many music fans stopped listening to the radio after hearing 'Doggie In The Window' too many times."