Forming or consisting of a large mass; solid; having great size and weight; heavy; weighty; ponderous: as, a massive weapon.Existing in mass or masses; massed or aggregated; not separated into parts or elements: specifically applied in psychology to sensations or feelings.Pertaining to the whole mass or bulk of anything; total, as to mass; not special, local, or partial.In mineralogy, without crystalline form, although perhaps crystalline in structure: as, a mineral that occurs massive. A mineral which is both massive and non-crystalline is said to be amorphous.In geology, homogeneous; destitute of structural divisions, such as planes of stratification or jointing.In zoology, massed: applied to the type of structure represented by the mollusks.In zoology: Noting a compact sponge of any kind which grows more or less equally in all directions: contrasted with incrusting, dendritic, flabellate, etc.In pathology, extensive; involving a large mass of tissue.n. Same as massif.