The phrase "confusing topic" refers to a subject or idea that is not easily understood or is puzzling to someone. It means that the concept or information related to that topic is difficult to grasp or comprehend. Full definition
This might be the most confusing topic in sports, and we have to confront it head on. (sbnation.com)
This is a very confusing topic for many people and hopefully this post will help to clarify some of the misconceptions surrounding food labels. (nicolejardim.com)
Taxes are probably the most confusing topic in the world of personal finances, as well as one of your biggest expenses. (lauradadams.com)