Found 2 items, similar to massiveness.
English → English (WordNet) Definition: massiveness massiveness n 1: an unwieldy largeness [syn: bulkiness] 2: the property of being large in mass [syn: heft, heftiness, ponderousness, ponderosity]
English → English (gcide) Definition: Massiveness Massiveness \Mass"ive*ness\, n. The state or quality of being massive; massiness. [1913 Webster]