rarefied

adjective

rar·​e·​fied ˈrer-ə-ˌfīd How to pronounce rarefied (audio)
variants or less commonly rarified
1
: being less dense
2
: of, relating to, or interesting to a select group : esoteric
3
: very high

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In the upper reaches of Chomolungma, known more familiarly as Mount Everest, the air is so rarefied—so much less dense than at lower elevations—that most climbers use supplemental oxygen in order to successfully complete their climb. This sense of rarefied, a word that comes from a combination of the Latin words rarus (“thin” or “rare”) and facere (“to make”), has been in use since the 1500s. A second, figurative sense of rarefied developed in the following century to describe things that can only be understood by a small or select group, i.e. one “thinned” from the majority of people by dint of their unique experience, expertise, or status. It’s this sense that we use when we say that to successfully summit Chomolungma puts one in rarefied company—just over 6,000 people have made it to the top at the time of this writing.

Examples of rarefied in a Sentence

It's difficult to breathe in the rarefied air near the mountain's peak.
Recent Examples on the Web
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Which, regrettably, brings us to Connor Hellebuyck, Oettinger’s counterpart for the Jets, who’s about to enter rarefied air with his third Vezina Trophy. Mark Lazerus, New York Times, 12 May 2025 Circuit two brings you into some of the ruins, while circuit three takes you to rarefied spaces once reserved for Inca royalty and is the most physically challenging option. Jennifer Kester, Forbes.com, 7 May 2025 This year, one of those rarefied lenses belonged to photographer Ruth Ginika Ossai, who was invited to create a special series of portraits taken inside the museum itself. Lilah Ramzi, Vogue, 7 May 2025 While Beyoncé and Jay-Z have occasionally brought their children to high-profile events—Blue Ivy has made appearances at everything from the Super Bowl to the Grammys—the Met Gala is a rarefied event with stricter age rules and exclusivity. Tahar Rajab, MSNBC Newsweek, 6 May 2025 See All Example Sentences for rarefied

Word History

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of rarefied was in the 14th century

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Cite this Entry

“Rarefied.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rarefied. Accessed 18 May. 2025.

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