Afterward, he said he was "disappointed" the NBA suspended him in the first place.
"I didn't think or believe that there was gonna be a suspension due to what happened and the facts and things like that," Anthony said.
The NBA punished Anthony for confronting Boston Celtics forward Kevin Garnett in a Madison Square Garden tunnel near the locker rooms, and then in the parking garage, after Monday night's 102-96 Knicks loss.
The two players mixed it up verbally in the closing minutes of that game, and both were whistled for technical fouls.
Anthony said he watched the Knicks' 81-76 loss to the Indiana Pacers on Thursday at the team hotel in Indianapolis.
"Had to put (the TV) on mute," Anthony said. "Everybody was just talking, about things that they don't know."
When asked what he learned from the incident and the suspension, Anthony said, "I definitely hurt my team; we had a chance to win that basketball game. But for the most part, things are said on the basketball court. I accept that; I accept trash talk. Like I said, there's just certain things that you don't say that pushed a button."
Anthony got off to a slow start, missing his first seven shots.
Coach Mike Woodson said he did not think Anthony was pressing early after returning from the suspension.
"He missed some good shots," Knicks coach Mike Woodson said. "He came in at half not shooting very well, but I thought as the game wore on he was back to being Melo again."