What term refers to something that is useless or cumbersome, often heavy and clumsy?

The term that refers to something that is useless or cumbersome, often heavy and clumsy, is "lumber." This word typically evokes the image of large, unwieldy wooden materials that can be difficult to handle and transport. In a broader context, it can describe anything that is awkward, clunky, or burdensome.

"Lumber" captures the essence of something that is not just heavy but also clumsy and unwieldy, which aligns with the idea of being cumbersome. This term can often be used metaphorically, implying that something feels like an encumbrance in a more abstract sense, therefore making it a fitting choice for this definition.

The alternative terms do not fully encapsulate the notion of being both heavy and clumsy in the same way. For instance, "burden" implies a load that is difficult to bear but doesn't necessarily convey the physical awkwardness. "Debris" refers to scattered pieces of waste or remains and doesn't confer the idea of something cumbersome. "Weight" mainly denotes heaviness and lacks the implication of awkwardness or clumsiness that "lumber" provides.