unwieldy
Definitions
Difficult to carry or move because of its size, shape, or weight.
Difficult to manage, control, or operate due to complexity or lack of organization.
Examples
The antique wardrobe was so unwieldy that it took four people to move it up the stairs.
The new software update introduced an unwieldy interface that made simple tasks much more difficult to complete.
Synonyms
cumbersome bulky clumsy awkward burdensome ponderous unmanageable
Antonyms
manageable handy convenient compact streamlined efficient light