Oxford Dictionary English reality check nounnoun BrE BrE//riˈæləti tʃek// ; NAmE NAmE//riˈæləti tʃek// [usually singular] (informal) Add to my wordlistjump to other resultsan occasion when you are reminded of how things are in the real world, rather than how you would like things to be It’s time for a reality check—you’re never going to finish that book.See reality check in the Oxford Advanced American DictionaryCheck pronunciation: reality check oxfordlearnersdictionaries.com