Elusive

"Elusive" describes something that is difficult to find, catch, understand, or achieve. It often refers to a goal, thing, or person that remains just out of reach despite effort. For example, a solution to a complex problem might be elusive if it’s hard to uncover, or a person who avoids being easily contacted could be considered elusive. The term highlights the challenge in grasping or pinpointing the subject, often because it is intentionally or naturally difficult to find or understand.