n. 笨拙, 沉重, 笨重

[ noun ]
the property of being large in mass
<noun.attribute>

Ponderosity \Pon`der*os"i*ty\, n.; pl. {Ponderosities}. [OF.
ponderosit['e].]
The quality or state of being ponderous; weight; gravity;
heaviness, ponderousness; as, the ponderosity of gold. --Ray.