An unclear or complicated situation can be confusing.
When we talk about something that's confusing, usually we mean it makes no sense or is hard to understand. Imagine trying to read a recipe with bad handwriting and lots of weird ingredients - that could be really confusing! It might happen when you're watching a movie in a language you don't speak well, or if someone explains a complicated idea without giving clear examples. You know how it feels when something doesn't add up? Yeah, that's what people mean by confusing.
To puzzle, perplex, baffle, bewilder (somebody).
Difficult to understand; not clear as lacking order, chaotic etc
Example: Several sections in that book are really confusing.
