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Synonyms

radically

American  
[rad-ik-lee] / ˈræd ɪk li /

adjective

  1. with regard to origin or root.

  2. in a complete or basic manner; thoroughly; fundamentally.


radically British  
/ ˈrædɪkəlɪ /

adverb

  1. thoroughly; completely; fundamentally

    to alter radically

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms


Etymology

Origin of radically

First recorded in 1600–10; radical + -ly


Explanation

The adverb radically is a great way to say "in an extreme way." When your formerly long-haired friend shows up at work with a crew cut, you could say that she looks radically different. Use radically to describe things that are done in a big way, particularly a change or an extreme position. For example, the government in your state might change radically after an important election. You'll often see the phrase "radically different" used to mean a change that's enormous, possibly even transforming. Though the root of radically, radical, originally meant "root of a word," it came to mean "far-reaching, innovative, or extreme," especially when it describes political views.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"What we need are schools that change radically, schools that are not designed around adults' pension systems," Lancini said at a meeting with the foreign press in Rome.

From Barron's ● Oct. 30, 2026

In the nine days since riots erupted in cities across France, thousands of merchants have also boarded up their storefronts, radically altering the Paris streetscape.

From Los Angeles Times ● Oct. 28, 2026

Mercedes had already decided to concentrate on 2026, when sweeping rule changes would radically reshape the experience of driving a Formula One car.

From The Wall Street Journal ● Oct. 23, 2026

If it’s successful, the custom treatment could radically change how certain patients with cancer are treated.

From MarketWatch ● Oct. 23, 2026

Despite the radically lowered expectations, the Pococks were soon ensconced on the Washington campus, and Hiram Conibear began to realize that he had hired much more than a skilled boatbuilder in George Pocock.

From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown

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