ultrafast
adjective
ul·tra·fast
ˌəl-trə-ˈfast 
: extremely or extraordinarily fast
ultrafast trains
ultrafast speeds
an ultrafast wireless connection
Examples of ultrafast in a Sentence
Recent Examples on the Web
View gallery - 4 images Elon Musk has previously promised the arrival of fully autonomous Teslas and ultrafast Hyperloop transport – both of which are yet to materialize.
—
New Atlas, 23 Mar. 2026
Users can also check ultrafast delivery options on Amazon’s getitfast site.
—Annie Palmer, CNBC, 17 Mar. 2026
Considering the extreme energy and ultrafast tempo the music requires, hardcore shows can be exhausting for all involved — and transformative.
—Christopher Arnott, Hartford Courant, 7 Mar. 2026
Treutelaar also has the typical tools, including ultrafast hand-to-hand snap times and pinpoint accuracy.
—Steve Reaven, Chicago Tribune, 5 Feb. 2026
See All Example Sentences for ultrafast
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.
New Atlas, 23 Mar. 2026
Users can also check ultrafast delivery options on Amazon’s getitfast site.
—Annie Palmer, CNBC, 17 Mar. 2026
Considering the extreme energy and ultrafast tempo the music requires, hardcore shows can be exhausting for all involved — and transformative.
—Christopher Arnott, Hartford Courant, 7 Mar. 2026
Treutelaar also has the typical tools, including ultrafast hand-to-hand snap times and pinpoint accuracy.
—Steve Reaven, Chicago Tribune, 5 Feb. 2026
See All Example Sentences for ultrafast
Cite this Entry
“Ultrafast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrafast. Accessed 28 Mar. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
