The phrase "a massive rate" is correct and usable in written English.
It can be used to describe a significant or large speed or frequency of something occurring.
Example: "The company experienced growth at a massive rate during the last quarter, surpassing all expectations."
Alternatives: "a rapid pace" or "a significant rate".
Never before in its four billion-year history has the Earth experienced such a massive rate of increase.
"But all of a sudden in the past few years, it's moved forward at a massive rate".
China, which also has a massive rate of rural to urban migration, is the second worst, with 104 million people without safe sanitation.
With Chinese netizens now totaling five hundred and thirty-eight million, with three hundred and thirty-eight million accessing the Web through smartphones, data will proliferate at a massive rate and will be increasingly mobile.
Chahal says "Advertisers renew at a massive rate", demonstrating that the ads perform well.
Virtual currency is a multi-billion dollar industry growing at a massive rate, and reckless short term behavior can threaten an even more prosperous long term future.
I argue that when cyanobacteria evolved chlorophylls instead of bacteriochlorophyll, and lost chlorosomes, there was another transient large change to the reductase enzyme, a temporary massive rate acceleration that artifactually stretched the stems of the tree that separate cyanobacteria from both groups of green bacteria.
It seems to me therefore that either he won't be able to maintain the supposed standard, or there will be a massive failure rate.
All labs which have succeeded in cloning animals report a massive failure rate, from embryos failing to implant in wombs to miscarriages and deformities at birth.
A massive interest rate hike by the Central Bank of Russia announced at a 1am local time resulted in a short rally - since then the rout has resumed.
Paul Greer, portfolio manager at Fidelity International, argues that Turkey actually needs a massive interest rate hike of perhaps 10 percentage points, to restore market confidence.
