Definition
An "open-and-shut" case or situation is one that's easily resolved or decided because the facts are clear and straightforward. There's no doubt about the outcome. It's like a puzzle where all the pieces fit perfectly right away. Unlike a complicated issue with many conflicting details, an open-and-shut matter is simple. It's analogous to a door that swings open without any resistance. The conclusion is obvious and unavoidable. ✅