Meaning of the word imbecile in English

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

imbecile

US /ˈɪm.bə.sɪl/
UK /ˈɪm.bə.siːl/

Noun

a person who behaves in an extremely stupid way:

Example:
What an imbecile that boy is!