cumbersome

Etymology

cumber (“hindrance”) + -some.

adj

1. Burdensome or hindering, as if a weight or drag; vexatious
2. Not easily managed or handled; awkward; clumsy.
   Cumbersome machines can endanger operators and slow down production.
3. Hard, difficult, demanding to handle or get around with.
   A slaves' work was as cumbersome as toiling on the fields, or in the mines.
4. Inert, lumbering, slow in movement