Meaning of the word "be worlds apart" in English

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

be worlds apart

US /biː wɜːrldz əˈpɑːrt/
UK /biː wɜːldz əˈpɑːt/
"be worlds apart" picture

Idiom

to be very different from each other

Example:
Their opinions on politics are worlds apart.
Despite being siblings, their personalities are worlds apart.