What is the meaning of unwieldy?

adjective

• Difficult to use or handle or manage because of size or weight or shape.
  • usage: "we set about towing the unwieldy structure into the shelter"; "almost dropped the unwieldy parcel"
  • synonyms: unmanageable
• Difficult to work or manipulate.
  • usage: "unwieldy rules and regulations"
• Lacking grace in movement or posture.
  • usage: "a gawky lad with long ungainly legs"; "clumsy fingers"; "what an ungainly creature a giraffe is"; "heaved his unwieldy figure out of his chair"
  • synonyms: gawky, clumsy, clunky, ungainly