Yes I remember it being translated as undeserved kindness but it was different from mainstream Christianity as I understand it. Grace was something given by God through Jesus' sacrifice and you only had to be a Christian to receive it I think. In the JW religion you had to show your faith by works. That scripture, can't remember where it was, said show me your faith apart from your works and I will show you my faith by my works, faith without works is dead.
Of course by works the JWs don't mean looking after the sick and elderly they mean meeting attendance and hours in FS. So basically undeserved kindness of God can be removed at any time if you don't measure up. I don't think the mainstream view of grace is like that.
Its an important point Smiddy because what you are constantly being threatened with in the JWs, if you don't measure up, or if they throw you out for asking a question, is separation from God's undeserved kindness and death. Yet the whole point of the teaching is supposed to be it's undeserved, you don't have to earn it.