unwieldy

adjective4

1. •
   Difficult to carry, handle, manage or operate because of its size, weight, shape or complexity.

   • The railways that would be fused to create the unwieldy Northern Line were the City & South London and the Charing Cross, Euston & Hampstead Railway, known as the 'Hampstead Tube'. — 2012
2. •
   Badly managed or operated.
3. •
   (no longer used) Lacking strength; weak.
4. •
   (no longer used) Ungraceful in movement.