the GNU version of the Collaborative International Dictionary of English
n. The state or quality of being massive; massiness.
The Century Dictionary and Cyclopedia
n. The state or quality of being massive, in any sense; specifically, great weight with bulk; massiness; ponderousness.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the property of being large in mass
n. an unwieldy largeness
Word Usage
"The floor was of large brown tiles, the beamed ceiling and the walls were whitewashed, and the huge, undecorated, cement fireplace was an achievement in massiveness and simplicity."