ultrafast

adjective

ul·​tra·​fast ˌəl-trə-ˈfast How to pronounce ultrafast (audio)
: extremely or extraordinarily fast
ultrafast trains
ultrafast speeds
an ultrafast wireless connection

Examples of ultrafast in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Until now, hummingbirds have drawn the most attention for their iridescent plumage and flight feathers that allow for ultrafast wingbeats. Elizabeth Rayne, ArsTechnica, 4 Apr. 2025 Beyond that, generative AI could leverage these systems to create high-fidelity simulations or perform ultrafast inferences in scenarios requiring split-second decisions, such as autonomous vehicles. The Physics Arxiv Blog, Discover Magazine, 16 Jan. 2025 These surfaces inhibit bacterial attachment, growth, and proliferation by using ultrafast lasers to modify the metal at a microscopic level. Jenny Lehmann, Discover Magazine, 26 Feb. 2025 General Motors is collaborating with ChargePoint to install up to 500 ultrafast charging stations across the United States to broaden the nation's charging infrastructure and encourage consumers to buy electric vehicles. Jamie L. Lareau, Detroit Free Press, 18 Dec. 2024 See All Example Sentences for ultrafast

Word History

First Known Use

1883, in the meaning defined above

Time Traveler
The first known use of ultrafast was in 1883

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Cite this Entry

“Ultrafast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrafast. Accessed 25 Apr. 2025.

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