on the contrary
US /ɑn ðə ˈkɑntreri/
UK /ɑn ðə ˈkɑntreri/

1.
au contraire, bien au contraire
used to intensify a denial of what has just been implied or stated by suggesting that the opposite is the case
:
•
“You didn’t like the movie, did you?” “On the contrary, I loved it!”
«Tu n’as pas aimé le film, n’est-ce pas ?» «Au contraire, je l’ai adoré !»
•
Some people think he’s arrogant, but on the contrary, he’s very humble.
Certaines personnes pensent qu’il est arrogant, mais au contraire, il est très humble.