You can read the original newsgroup thread here to see other people's suggestions. I'll lj-cut my own list so as not to influence anyone else who wants to try it:
Under A Blood Red Sky: Distant
The Unforgettable Fire: Soothing
The Joshua Tree: Big
Rattle & Hum: Attitude
Achtung Baby: Passionate
All That You Can't Leave Behind: Tame
Interestingly enough, I just did that from scratch without reading the list I posted two years ago, and I didn't come up with the same word for a single album this time round.