In a massive manner, in a way that appears large, heavy or imposing.(adverb)
Greatly.(adverb)
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Use "massively" in a sentence
"The Swiss National Bank has battled to lower what it describes as a "massively overvalued" franc in recent weeks, flooding the Swiss franc market with liquidity and cutting interest rates to zero."
"According to Wright same article it's both: "...this really is a hybrid, it's what we call a massively single-player game, where we try to get the benefits of an online game, which is all the people building the world collectively together, without the liabilities, which is that the 14-year-old can kill you or that you've invested all this time in your planet and somebody comes along and blows it up...""
"MESERVE: Business travel coalitions says it was stunned to learn of what it calls a massively intrusive program."