Meaning of the word puerile in English

What does puerile mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

puerile

US /ˈpjuː.ɚ.ɪl/
UK /ˈpjʊə.raɪl/

Adjective

behaving in a silly way, not like an adult:

Example:
I find his sense of humor rather puerile.