Cumbersome means awkward, heavy, or difficult to handle because of size, weight, or complexity. When something is cumbersome, it slows you down or makes a task harder than it needs to be.

A medieval knight's armor was cumbersome: it protected him in battle but made simple movements like climbing stairs or mounting a horse exhausting. A backpack stuffed with textbooks becomes cumbersome when you're rushing between classes. Old desktop computers with their bulky monitors and tangled cables seem cumbersome compared to today's sleek laptops.

The word can describe physical objects or abstract things like rules and processes. A school permission slip that requires five different signatures becomes a cumbersome process. Instructions with twenty confusing steps feel cumbersome compared to three clear ones.

Cumbersome suggests that something could work better if it were simpler or lighter. When you hear someone call a system or object cumbersome, they're usually frustrated because they can imagine an easier way. Engineers and designers spend their careers trying to make cumbersome things more efficient, whether that means lightening a soldier's equipment or streamlining how a hospital keeps its records.