I'd like to request that this question be reopened.
It was closed because some people are confused about what "defensive" means in chess - I meant to clear that up in an answer, but the question was closed before I could. It does however have definite meaning, and this question has a definite answer (in the sense that all masters would agree) - in fact @Shannon provided a pretty good answer, though its lack of examples may be why some people are still confused.
(For the curious: playing defensive in chess means playing reactively, and usually allowing your pieces to be tied up in defense - that is, giving your opponent the initiative. This is usually considered a bad thing, but it may be the right idea if you believe you are gaining a more important imbalance - for instance, you give your opponent the initiative in return for material, because you believe you can ward off his attack. However, there are times where playing defensively is akin to suicide ex. rook endgames. I intend to make this more clear with specific examples)