adjective
massive
MAS-iv/ˈmæsɪv/
Extremely large or great.
The massive boulder dwarfs the older hiker standing beside it.

Etymology
The image is a solid lump of matter, giving massive its sense of great size and weight. Applied to immaterial things, that physical bulk becomes imposing scale or extent.
In context
Imagine a 40ton humpback or a 90 ton blue whale dying in the sunlit world miles above. Its massive body, too heavy to float,
More examples
- The project requires a massive investment.
- The storm causes massive damage along the coast.
- A massive oak shades the entire yard.
Forms
massive · more massive · most massive
massively adverb — To an extremely great degree or extent.