Unfortunately it simply isn't going to look as good as it did on the lower resolution displays, until Microsoft updates Office. I wouldn't hold my breath, though: I would be very surprised if this technological shift was simple.
[If it were, you'd see Apple's apps updated already, and very few have been]
Changing the resolution of the Mac isn't much help, at least for me: the UI and other text in Word and other apps is simply unreadable, and changing resolution 10x a day isn't a solution.
The text in apps (like Safari and TextEdit) that DO support Retina is fantastic, just like the iPad. So my plan, wonky as it is, is to use other apps to do my primary writing until there's a good word processor that supports the Retina display. That's harsh, because Word is perfect for me. But I can't spend hours writing while looking at text that blurry. Gives me a headache.