Zidane was sent off as France lost to Italy on penalties in the last match of his otherwise glorious career.
He said: “Nothing changes, but I forgive everyone, not him though. Never, never… It would be a dishonour to myself. I would rather die.
“I don't blame myself for what happened, but if I say sorry it would be admitting that what Materazzi did was normal.
“He insulted me and he insulted my mother, who was ill, more than once and I didn't respond. But then, I did it.
“If he were a decent guy, a good lad like Kaka for instance then I would have apologised, but not this.”