ul·​tra·​light·​weight ˌəl-trə-ˈlīt-ˌwāt How to pronounce ultralightweight (audio)
: having an extremely low weight : very lightweight
Exciting new developments in ultralightweight materials and powerful rocket motors now give amateurs all the tools they need to venture toward the final frontier.Shawn Carlson

Examples of ultralightweight in a Sentence

Recent Examples on the Web A couple weeks prior to meeting Glen, my college buddy Dan Buettner invited me to join a group of his friends on an ultralightweight hike through Utah’s Buckskin Gulch—led by, according to Dan, a mythical legend named Glen Van Peski. Ali Selim, Outside Online, 14 July 2021 This is one of the reasons the EQXX can get away with ultralightweight aluminum brake rotors, rather than conventional cast-iron or even carbon-ceramic discs. Mike Sutton, Car and Driver, 24 July 2022 But there are other, ultralightweight solutions that sink in like the essences and toners of one’s skin-care routine. New York Times, 6 July 2021 Besides that, its hood and arms are made from Patagonia’s ultralightweight base-layer material, Capilene Cool. Joe Jackson, Outside Online, 18 Apr. 2020 Throughout the mission, particles of dust smacked into the spacecraft’s sample collectors, where they became lodged in an ultralightweight spongy material called aerogel. Sarah Scoles, Discover Magazine, 26 Aug. 2015

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ultralightweight.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1906, in the meaning defined above

Time Traveler
The first known use of ultralightweight was in 1906

Dictionary Entries Near ultralightweight

Cite this Entry

“Ultralightweight.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultralightweight. Accessed 15 Jun. 2024.

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