The phrase "are confrontational with" is correct and usable in written English.
It can be used to describe a situation where someone is aggressive or challenging towards another person or group.
Example: "In meetings, they often are confrontational with their colleagues, which creates a tense atmosphere."
Alternatives: "are aggressive towards" or "are combative with".
There was a problem with a host at Balthazar who was "confrontational" with customers who lied about having reservations.
While it's never a good idea for CEOs to be confrontational with their board members, they shouldn't kowtow either.
In some ways, he is the anti-Joe, unafraid to be confrontational with ownership, inflexible in the way he handles players.
In Mr. Blix, they could agree to a respectable, experienced candidate, if not one likely to be confrontational with the Iraqis.
The image was confrontational — with the addition of a swoosh, it could have been an ad for Nike — but it seemed lost amid the visual distractions of lower Manhattan.
Trump wants the oversight being conducted by Congress to appear partisan to bolster his claim that he's the victim of "presidential harassment". He no doubt wants his representatives to be confrontational with their interlocutors.
Christopher G. Donovan, a Meriden Democrat who is the House majority leader and the odds-on favorite to be the next state House speaker, said Democrats don't intend to use their legislative advantage to be confrontational with Mrs. Rell.
They do so because they do not want to be confrontational with Congressional appropriators and because presidents have plenty of their own pork buried in budget appropriations that would be in jeopardy.
Seeking to be confrontational with audiences, therefore, and challenging them shouldn't be done for its own sake – or even just to annoy Daily Mail theatre critics — but in a staged approach.
In terminating its merger agreement, however, Tribune on Thursday took aim at Sinclair's behavior, arguing in its lawsuit that Sinclair had been "confrontational with and belittling of DOJ staff". During negotiations, for example, Sinclair's general counsel, Barry Faber, challenged the Justice Department's top antitrust official, Makan Delrahim, telling him at one point, "sue me," Tribune alleged.
