For me it's "terrific." It reminds me of "terrible" and "horrific" being combined. I always need to reread a sentence that uses it to notice that it was talking about terrific things.
The word "event " makes me think of my friend Ivette. They sound alike. goonish
Stupendous makes me think of someone being stupid. <3
When I was younger I always thought perilous meant no danger. Like, peril-less
Beau, it makes me think that somethings ugly, not beautiful.