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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.

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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:

Because of those parasites and the extremely dark, murky environment in which the sharks live, scientists have long suspected that Greenland sharks may be functionally blind.

From Science Daily Aug. 23, 2026

Its data said emissions in Torfaen had been "extremely unusual".

From BBC Aug. 22, 2026

Looking out to 2030, viability "remains extremely limited and mainly only concerns raw materials", Eve Barre, an economist who piloted the Coface study, said in a statement.

From Barron's Aug. 22, 2026

“I think we would be extremely happy and satisfied if we could get ourselves up to 2,500, maybe a bit higher than that in the next year.”

From MarketWatch Aug. 21, 2026

The ship also carried a large supply of long poles, each of which had an extremely sharp, curved blade attached to one of its ends.

From "Shipwrecked!" by Martin W. Sandler

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