as in high-speed
Related Words
Relevance
Dissimilar Words
Example Sentences
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.
Recent Examples of ultrafast
The infrastructure passed national acceptance in February 2025 and brings together ultra-low temperatures, strong magnetic fields, ultra-high pressure, and ultrafast optical systems in one location.
—
Sujita Sinha, Interesting Engineering, 28 Jan. 2026
But homes also need ultrafast Wi-Fi for laptops and phones and streaming video.
—IEEE Spectrum, 25 Dec. 2025
Compare that to 37 miles per second for the swift Perseids, 41 for the very swift Orionids, and 45 for the ultrafast Leonids.
—Joe Rao, Space.com, 7 Dec. 2025
Amazon is simultaneously piloting new logistics models aimed at ultrafast delivery, including Amazon Now, a service that promises 30-minute delivery of groceries and household items in select parts of Seattle and Philadelphia.
—Associate News Editor, MSNBC Newsweek, 4 Dec. 2025
See All Example Sentences for ultrafast
Sujita Sinha, Interesting Engineering, 28 Jan. 2026
But homes also need ultrafast Wi-Fi for laptops and phones and streaming video.
—IEEE Spectrum, 25 Dec. 2025
Compare that to 37 miles per second for the swift Perseids, 41 for the very swift Orionids, and 45 for the ultrafast Leonids.
—Joe Rao, Space.com, 7 Dec. 2025
Amazon is simultaneously piloting new logistics models aimed at ultrafast delivery, including Amazon Now, a service that promises 30-minute delivery of groceries and household items in select parts of Seattle and Philadelphia.
—Associate News Editor, MSNBC Newsweek, 4 Dec. 2025
See All Example Sentences for ultrafast
Recent Examples of Synonyms for ultrafast
Adjective
-
Six days before Ronald Wilbert Wilson’s 74th birthday, a Broward Sheriff’s Office deputy lost control of his SUV during a high-speed chase and slammed into Wilson’s pickup truck.—
Miami Herald,
Miami Herald,
28 Mar. 2026
-
These alerts typically define safe corridors for high-speed test flights over the Atlantic.—
Aamir Khollam,
Interesting Engineering,
28 Mar. 2026
Adjective
-
This season, the Jets are No. 22 in rush EPA defense, surrendering 4.24 yards per carry and 104.6 rush yards per game to running backs.—
Brad Evans,
New York Times,
13 Nov. 2025
-
The Titans’ defense is 24th in rush EPA per play and 11th in rush success rate.—
Doug Kyed,
Boston Herald,
18 Oct. 2025
Cite this Entry
“Ultrafast.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ultrafast. Accessed 30 Mar. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
