[Nogrod]

Ällistyttävä!

I checked my vocabulary with this one and it didn't give me any one-to-one translation.

But I liked the version of it being when someone is "dumbfounded" - so make it an adjective describing a work, "dumbfounding"? Well, Finnish language works like that: you can twist the classes of different terms by just adding things in the end of the word. As you see, I work that way in English too when I don't know the actual ways of usage of the terms...