unwieldy
US /ʌnˈwiːl.di/
UK /ʌnˈwiːl.di/

1.
difficult to carry or move because of its size, shape, or weight
:
•
The couch was too unwieldy to get through the narrow doorway.
•
He struggled with the unwieldy package.
2.
difficult to manage or control
:
•
The large committee proved to be unwieldy and inefficient.
•
The company's bureaucracy had become unwieldy.