heavy and awkward to carry
clumsy, awkward
having (a lot of) weight; difficult to carry or move; of more than usual size, amount etc
having great weight
large, heavy and solid; large and complete
large
slow and heavy; (of written style) serious and dull
heavy, cumbersome
awkward to move or control because of shape, size or weight
awkward, bulky
very heavy; having strong influence
heavy