Akademik

massiveness
noun
1. an unwieldy largeness
Syn: ↑bulkiness
Derivationally related forms: ↑massive, ↑bulky (for: ↑bulkiness)
Hypernyms: ↑largeness, ↑bigness
2. the property of being large in mass
Syn: ↑heft, ↑heftiness, ↑ponderousness, ↑ponderosity
Derivationally related forms: ↑ponderous (for: ↑ponderosity), ↑ponderous (for: ↑ponderousness), ↑massive, ↑hefty (for: ↑heftiness), ↑hefty (for: ↑heft)
Hypernyms: ↑heaviness, ↑weightiness

Useful english dictionary. 2012.