adjective

1. 1. forming or consisting of a large mass; big and solid; bulky; ponderous
   2. larger or greater than normal a massive dose of medicine
2. large and imposing or impressive; of considerable magnitude
3. large-scale; extensive massive retaliation
4. Geol.: said of some stratified rocks
   1. homogeneous in structure, without stratification, foliation, etc. massive rock formations
   2. occurring in thick beds, without minor joints and lamination
5. Med. heavy and of wide extent massive hemorrhage
6. Mineralogy irregular in form, though occasionally crystalline in internal structure

Etymology: Fr massif, with change of suffix (see -ive), for OFr massiz < VL *massiceus < L massa, mass