An antonym for the word "more systematized" would be "less organized" or "more haphazard." When something is not systematized, it lacks structure and order, making it harder to manage and control. Some additional antonyms for "more systematized" could include "more chaotic," "more disordered," or "more disorganized." These antonyms suggest a lack of structure and organization, indicating that the system is not functioning effectively. In contrast, a system that is more systematized would be well-organized, efficient, and easy to manage, leading to improved outcomes and higher productivity.