Cumbersome (adjective)

1. Difficult to handle or carry because of size, weight, or shape.
2. Complex or intricate and therefore difficult to use or understand.

Origin:

From the middle english "cumbrous", from the old english "cumb" (heavy) + "-rous" (full of).

Examples:

1. The cumbersome equipment made it difficult to move around the construction site.
2. Filling out the forms was a cumbersome process.
3. The cumbersome regulations made it hard for small businesses to compete.
4. The camera is too cumbersome to take on vacation.
5. The cumbersome design of the website makes it hard to navigate.