extremely

adverb

ex·​treme·​ly ik-ˈstrēm-lē 

1

: in an extreme manner

2

: to an extreme extent

Synonyms of extremely

• very
• incredibly
• terribly
• highly
• too
• so
• badly
• damned
• severely
• damn
• really
• super
• desperately
• intensely
• seriously
• far
• exceptionally

Examples of extremely in a Sentence

an extremely hot day

Recent Examples on the Web

To say that Ewers’ next few days will be extremely difficult is an understatement. —Miami Herald, 18 Dec. 2025

In extremely dense fog where visibility is near zero, the best course of action is to first turn on your hazard lights, then simply pull into a safe location such as a parking lot of a local business, and stop. —Ca Weather Bot, Sacbee.com, 18 Dec. 2025

There is something extremely chic, though, about how fresh and modern the minimalist Calvin Klein dress still feels in 2025. —Christian Allaire, Vogue, 17 Dec. 2025

The titular story is about an assassin who is having an extremely bureaucratic exchange with a recruit, explaining to him how best to arrange a tableau of dead bodies for maximum aesthetic effect. —The New Yorker, New Yorker, 17 Dec. 2025

Word History

First Known Use

1509, in the meaning defined at sense 1

Phrases Containing extremely

• extremely high frequency
• extremely low frequency

Rhymes for extremely

• seemly
• unseemly