I find no listing for 'ahurissant' on Wikipedia. From one context in which I find it, it seems to correspond to something like 'fantastic' or 'astounding'. Can anyone give me a better translation, or more information as to where this word comes from?
Quite so. I was just pointing at those shifts in the meaning of some words: "wicked" has become statistically positive, so has "terrible" in French, depending on trends. Awesome has the same root as awful and there's a dimension of terror/respect in both of them. Up to now calling someone un ahuri was quite derogatory and yet, as you remarked, it can now qualify an awesome movie. So I was talking about ahurissant in the sense of something/someone who leaves you flabbergasted. Along the same lines stupéfiant may mean ahurissant while as a noun it refers to drugs. I'll stop because I will get carried away on one of those lexical raves.