unwieldy

adj

1. (obsolete)Lacking strength; weak.
2. (obsolete)Ungraceful in movement.
3. Difficult to carry, handle, manage or operate because of its size, weight, shape or complexity.

   “She is popular with passengers as an all-weather vessel, but rather the reverse with yachtsmen as she has at times proved somewhat unwieldy, and certainly takes up a good deal of space in the narrow channels.”

   “However, the constellation of Argo Navis was so huge and unwieldy that in the 1932 revision, the International Astronomical Union committee chopped it up into a keel (Carina), a poop (Puppis) and sails (Vela).”

   “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'.”

   “Recorded music came in unwieldy packages and odd shapes.”

4. Badly managed or operated.