The Argentina defender says his side's 2-0 Superclasico defeat is 'part of the learning' but admits he hates losing against his arch rivals.
Zabaleta and co fell to two goals from Diego Tardelli, with Lionel Messi also missing a penalty for Tata Martino's side.
And the City man says he 'hates' losing to the Brazilians, although he insists it is 'part of the learning.'
"We are in a changing process, with a new manager. It will take a while until we know each other better," Zabaleta told reporters after the defeat.
"I hate losing and more so against Brazil but it is part of the learning."
Barcelona and former Liverpool midfielder Javier Mascherano also spoke after the game, suggesting that the game turned after a 'mistake' for Brazil's first goal.
That mistake, incidentally, came from Zabaleta, who went for the same header as his centre-back instead of marking Tardelli.
"We made a good start in the first half, having several chances and then, after a mistake, they found the opener," Mascherano explained. "Sadly, in the second half, we could not cause any damage."
Meanwhile, former Tottenham Hotspur boss and Argentina man Ossie Ardiles also commented on his country's defeat, tweeting:
ARG-BRA: Poor ARG performance. Too many mistakes. Fragil in defence, no too many ideas going forward. In the 2nd half not one proper chance— osvaldo ardiles (@osvaldooardiles) October 11, 2014