Question

Vous êtes absolument .............. la proposition.

Hint:

“Être contre” means to oppose. Always use it with abstract nouns like idées, projets, lois, etc.

Answer 1

The sentence expresses opposition to a proposal, and the correct French preposition for expressing being against something is “contre”.
In French, “être contre quelque chose” means “to be against something.”
Examples:
— Je suis contre cette décision. (I am against that decision.)
— Ils sont contre l’idée de changer le programme. (They are against the idea of changing the program.)
The opposite of “contre” is “pour” (for).
So if someone supports the proposal, they’d say: “Je suis pour la proposition.”
Therefore, in this case, the person strongly disagrees — so the correct sentence is: Vous êtes absolument contre la proposition.