disagree
If you disagree with a person, statement, or idea, you have a different opinion of what is true or correct.
I disagree completely with John Taylor.
I disagree with much of what he says.
Don't use any preposition except with when you are mentioning the person, statement, or idea that you disagree with.
You can say that you disagree with someone about something.
I disagreed with them about how we should spend the money.
You can also say that two or more people disagree about something.
He and I disagree about it.
Historians disagree about the date of his birth.