George Russell says he has "no intention" of speaking to Max Verstappen to clear the air following their row at the end of last season.
Their dispute blew up when Verstappen was penalised for impeding Russell at the Qatar Grand Prix - and the Dutchman said he had "lost all respect" for his rival.
But Briton Russell hit back, suggesting the Red Bull driver "cannot deal with adversity".
Russell said at the F1 75 event at London's O2 Arena on Tuesday that he and Verstappen "hadn't spoken" over the winter.
"I've got no intentions [to], to be honest," the Mercedes driver said in an interview with BBC Sport.
"That happened last year. I want to focus on myself. Things got out of line last year. That was then. We are not going to go back to being best mates, that's for sure."
The spat ended last year on a sour note for the two drivers, who have had run-ins in previous seasons.
Asked whether he had concerns about the situation, Russell said: "No concerns about him or his driving. I am not going to change my approach fighting him or other drivers."
Verstappen is due to speak to the media later on Tuesday, before the live show at the O2, which starts at 20:00 GMT.
Russell also expressed his opinions about the decision by governing body the FIA to codify a system that could lead to drivers being banned for swearing or criticising race officials.
The 27-year-old, who is a director of F1 drivers' body the Grand Prix Drivers' Association (GPDA), said: "It's going quite far. As drivers we have to continue to show our personalities. We don't want to be in a bubble. That's pretty obvious.
"There is merit in saying you shouldn't swear in an environment like this [a news conference]. But when it's not your first language the first words you get taught are the swear words."
Last year, Verstappen was ordered to do a form of motorsport community service after swearing in a news conference at the Singapore Grand Prix.
The four-time world champion responded by restricting his answers in an official FIA news conference the following day and speaking to journalists outside the room.
McLaren driver Oscar Piastri said: "In the car, we are in our zone and of course we are going to say things in the heat of the moment and not politically correct, but out of that situation we are role models and we should be setting an example.
"Whether that requires a big monetary fine to remind us of that? A talking-to is probably enough. I see it both ways and I will try to keep myself out of trouble."
At the weekend, world rally driver Adrien Fourmaux became the first driver punished under the new ruling.
He was fined 10,000 euros (£8,300), with a further 20,000 euros (£16,600) suspended, for swearing in a TV interview after a special stage.
Last week, Williams drivers Carlos Sainz and Alex Albon both said it was wrong to threaten drivers with bans for swearing - but agreed drivers should watch their language out of the car.