massive
adjective
imposing in size or bulk or solidity
“massive oak doors”
“Moore's massive sculptures”
being the same substance throughout
“massive silver”
imposing in scale or scope or degree or power
“massive retaliatory power”
“a massive increase in oil prices”
consisting of great mass; containing a great quantity of matter
“Earth is the most massive of the terrestrial planets”
Source: WordNet 3.1, Princeton University
