Quinquennial - now, there's a word I don't use often! I am happy to say that today I am 5 years living in Minnesota. It seems so much longer when I think of the actual move over here. But so much less when I think of how quick those years have passed. But heck, a lot has happened. 95% good, 5% not so good. That is a pretty decent ratio.
I probably won't make it to my Semisesquicentennial (also known as Demisesquicentennial or Hemisesquicentennial) anniversary but I'd be okay with Semicentennial (also known as Quinquagenary). And, that's a bit easier to spell...