Meaning of the word "wet behind the ears" in English

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

wet behind the ears

US /wɛt bɪˈhaɪnd ðə ɪərz/
UK /wɛt bɪˈhaɪnd ðə ɪərz/

Idiom

young and inexperienced

Example:
He's still a bit wet behind the ears, so be patient with him.
Don't expect too much from him; he's still wet behind the ears.