The adjective "bulky" describes something that is large, heavy or thick in size. It can be used to describe objects such as furniture, clothing, packages or other items that take up a lot of space due to their dimensions.
Usage examples
The package was too bulky to fit into my backpack.
She carried a bulky suitcase that seemed to weigh a ton.
The new sofa we bought is quite bulky and takes up a lot of space in the living room.
The construction workers wore bulky helmets to protect their heads.
You might want to consider buying a smaller laptop as this one is quite bulky to carry around.
The bulky winter coat provided excellent insulation against the cold temperatures.
The bulky bookshelves in the study room made it difficult to move around.
The athlete had trouble running due to his bulky, muscle-bound physique.
The old television set was replaced with a sleeker, less bulky flat-screen TV.
The hiker struggled to climb steep hills with a bulky backpack.