OK, you probably aren't going to believe me, so start reading. What are you not going to believe? Just this -- that sin and holiness are not opposites. OK, go back and start reading again. Did you notice that lots of places and inanimate objects get called holy? Can inanimate objects sin? So if inanimate objects can't sin and yet they can be holy, then holiness must be something other than some sort of moral, or personal character trait. I know that some of you do know the answer to what holiness is already don't you. You know that holiness is about being separate, distinct and, in the case of items, set aside for special use by God. And when the angels cry "holy! holy! holy!", the are proclaiming Gods special uniqueness. The only uncreated, self-sustaining, truly independent being that exists. We are made of the stuff of this universe (atoms if you like), God is not.
So are you wondering what is the opposite of sin? Well if sin is breaking the law, and love (agape) fulfills the law then it would be love wouldn't it? Or since the law points us to the greater reality of love, then you could say that to sin is to break agape, or to not love.
Well, I hope that is a big paradigm shift for you (unless you already knew this), it certainly was for me :-)