I'm not aware of a way of doing that. I've tried deleting the Reminders app and reinstalling it again, but it just comes back again. I also tried logging out of iCloud and restarting my iPhone but once I'd logged back in to iCloud they started appearing again. I've decided to use a different app now as it's becoming a pain, but I wondered if anyone had seen this before as I'm also having major battery drain issues on my series 4 watch (currently at 18% when fully charged at 7:30am today); both problems appeared around the same time so I'm clutching at straws that there might be some kind of connection as to something in the background causing both issues š.