be/talk at cross purposes

be at cross purposes

To be in conflict with or in opposition to someone. You will never find success if you continue to be at cross purposes with your teammates.
See also: cross, purpose

talk at cross purposes

To talk with others in a way that maintains conflict or opposition. You will never find success if you continue to talk at cross purposes with your teammates.
See also: cross, purpose, talk

be/talk at cross ˈpurposes

(of two people or groups) misunderstand what the other is referring to or trying to do: Mary and I spoke about Anne for a minute or two before I realized we were talking at cross purposes: I meant Anne Smith and Mary meant Anne Harris.
See also: cross, purpose, talk