I didn't mean it in the traditional. completely mindless sense. I meant all you do is run and dodge roll until you see an opening, and mash the attack button. It's not the most elegant combat system. It just has you running around like a chicken with your head cut off avoiding attacks, and then slicing away when you get the chance. If you're facing a mob, you're running in a circle half the time, and pot shotting them. There isn't much in the way of strategy and pattern recognition. I know there is a layer of depth to it, and certain boss fights do require unique approaches, but it never really comes together during the rest of the game, and I never felt that I was learning as I went, so even when you're successful it's not very satisfying. I just used appropriate magic and traps when I had to, and then just run, run, run, roll, roll, roll, slice, slice, slice, with the occasional block here and there.
I guess if was to describe the combat in Witcher 2 in one word, it would be "frantic".