a. [ F. massif. ] 1. Forming, or consisting of, a large mass; compacted; weighty; heavy; massy. “Massive armor.” Dr. H. More. [ 1913 Webster ]
2. (Min.) In mass; not necessarily without a crystalline structure, but having no regular form; as, a mineral occurs massive. [ 1913 Webster ]
Massive rock (Geol.), a compact crystalline rock not distinctly schistose, as granite; also, with some authors, an eruptive rock. [ 1913 Webster ]
adv. In a heavy mass. [ 1913 Webster ]
n. The state or quality of being massive; massiness. [ 1913 Webster ]