Adverb

(en adverb)

In a strong substantial manner; considerably.

* 2012 October 23, David Leonhardt, "[http://www.nytimes.com/2012/10/24/us/politics/race-for-president-leaves-income-slump-in-shadows.html?_r=1&hp]," New York Times (retrieved 24 October 2012):

For the first time since the Great Depression, median family income has fallen substantially over an entire decade. Income grew slowly through most of the last decade, except at the top of the distribution, before falling sharply when the financial crisis began.

To a great extent; in essence; essentially.

Without material qualifications.

Adverb

(en adverb)

In a manner showing much potential; with the possibility of happening in a given way.

* {{quote-magazine, year=2013, month=September-October, author= Michael Sivak

, magazine=(American Scientist), title= Will AC Put a Chill on the Global Energy Supply? , passage=Nevertheless, it is clear that the global energy demand for air-conditioning will grow substantially as nations become more affluent, with the consequences of climate change potentially accelerating the demand.}}

(label) Powerfully, strongly.

* 1851 , (Herman Melville), (Moby-Dick) :

I freely assert, that the cosmopolite philosopher cannot, for his life, point out one single peaceful influence, which within the last sixty years has operated more potentially upon the whole broad world, taken in one aggregate, than the high and mighty business of whaling.