
Cumbersome
Physical Burden
Use 'cumbersome' to describe objects that are hard to move or handle because of their weight or size. 
Spatial Awareness
'Cumbersome' is handy when talking about items that take up too much space, making areas hard to navigate. 
Prolonged Effort
Items aren't momentarily cumbersome; the term implies a prolonged or continuous state of difficulty in handling. 