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Synonyms

extremely

American  
[ik-streem-lee] / ɪkˈstrim li /

adverb

  1. in an extreme degree; exceedingly.

    extremely cold.


extremely British  
/ ɪkˈstriːmlɪ /

adverb

  1. to the extreme; exceedingly

  2. (intensifier)

    I behaved extremely badly

"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

Usage

What does extremely mean? Extremely means to a very great degree—exceedingly. Instead of saying I’m very very tired, you could say I’m extremely tired. Extremely is the adverb form of the adjective extreme, which means of the highest degree or intensity. Extremely is almost always used to modify (describe) adjectives and almost never verbs. It emphasizes or intensifies the meaning of the adjective and indicates that its level is far beyond the ordinary. Example: At some times during the winter, it gets so extremely cold here that it’s dangerous to go outside for more than a minute.

Etymology

Origin of extremely

First recorded in 1525–35; extreme + -ly


Explanation

Extremely is a word that emphasizes the intensity of whatever it is you're talking about. If you say you're extremely angry, that word alone tells me I better not mess with you. Extremely comes from the word extreme, which means great, severe, or exceptional. If you climb to extreme heights on a mountain, you've climbed extremely high. Use extremely to let people know that what you're talking about exceeds or goes beyond the norm. A joke that's not just funny, but extremely funny, is one that might have you gasping to catch your breath from laughing so hard.

Keep Reading on Vocabulary.com

Vocabulary lists containing extremely

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:

"Megaspeed takes its compliance obligations under US export control laws extremely seriously," it said.

From Barron's ● Nov. 13, 2026

Singleton said all cases of misconduct are taken "extremely seriously" and this was reflected "in the dismissals of two officers".

From BBC ● Nov. 13, 2026

Their experiments examined what happens when rocks containing iron react with hydrogen at extremely high temperatures.

From Science Daily ● Nov. 12, 2026

“We are claiming that we can do health and wellness. We can play in that space, and we can do it extremely well.”

From The Wall Street Journal ● Nov. 12, 2026

Jennings later said of the two men, “He and Mr. Madison...were extremely intimate; in fact, two brothers could not have been more so.”

From "In the Shadow of Liberty" by Kenneth C. Davis

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