Ways to say 'I don't like it':
1. That's not for me
E. g. Wine is not for me.
2. I'm not into it
E. g. I've never been into baseball.
3. I pass
E. g. Jack - Do you want some beer?
Mike - I pass.
4. I'm not fond of it
E. g. I'm not fond of chocolate icecream.
5. I dislike it
6. I'm not crazy about it
E. g. I'm not crazy about sky diving.
7. I don't appreciate that
E. g. I don't appreciate people littering during a marathon.
8. I've had enough
E. g. I think they should stop making such films, I've had enough.
9. I'm impartial about that
E. g. I'm impartial about going on a plane.
10. I'm not a big fan of it
E. g. She asked me if I wanted to go to a music concert, but I'm not a big fan of it.