Is Adelaide fun or boring??
An interesting question this one depending on your expectations. I have lived in Adelaide my entire life so I can assure you its nothing like New York, Tokyo or Sydney and can definitely look boring from the surface!
BUT, when you are studying in Adelaide, there is definitely an abundance of things that can make your life here a fun and interesting place to be. Open most days there is movie theatres in convenient places, sports clubs everywhere that are very welcoming to new people, many different, cheap and unusual places to eat, the zoo, shopping complexes, beautiful walks and even better beaches, ice skating complex and night clubs just to name a few things to keep you entertained while in Adelaide. (The worst thing about Adelaide is that most shops close at 5.30 during the week and even earlier on weekends!)
Of course, Adelaide can get boring especially after you have done these things a million times. But, at the end of the day if you have awesome friends and an imagination you can make anything fun any day!
When Adelaide does get boring, especially in the summer holidays take a trip to other cities in Australia, these days plane tickets are very cheap so there is no excuse!
Join as many clubs as possible and go out of your way to meet new people and then Adelaide will be one of the best places you visit!