Complicated
"Complicated" refers to something that is intricate or difficult to understand due to its many interconnected parts. This can apply to various subjects, such as mathematics, relationships, or mechanical systems, where multiple factors influence the overall outcome or function.
In everyday life, a complicated situation might involve numerous variables that make decision-making challenging. For example, a legal case can be complicated due to the various laws, evidence, and testimonies involved, requiring careful analysis to navigate effectively.