be worlds apart
US /biː wɜːrldz əˈpɑːrt/
UK /biː wɜːrldz əˈpɑːrt/

1.
ser mundos aparte, ser muy diferente
to be very different from each other
:
•
Their opinions on politics are worlds apart.
Sus opiniones sobre política son mundos aparte.
•
Despite being siblings, their personalities are worlds apart.
A pesar de ser hermanos, sus personalidades son mundos aparte.