as in immediately
without delay
I had just slammed the car door shut when I instantaneously remembered that I had left the keys inside
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Recent Examples of instantaneously
The system measures jump heights, air times, and landing speeds in real time, producing heat maps and graphic overlays that break down each program—all instantaneously.
—
Maurizio Arseni, IEEE Spectrum, 4 Feb. 2026
Almost instantaneously a dark spot appeared on another ice ridge about 600 yards out.
—David Zeug, Outdoor Life, 4 Feb. 2026
The voltage on the floor arced up instantaneously.
—Billboard Japan, Billboard, 30 Jan. 2026
Measuring an electron’s spin on Earth could tell you instantaneously the spin of its entangled partner on Mars.
—Joseph Howlett, Scientific American, 27 Jan. 2026
Gold markets can be highly volatile and opinions in the sector may change instantaneously and without notice.
—Gaurav Sharma, Forbes.com, 23 Jan. 2026
ChatGPT-3 is rather like a silicone Sibyl, where even if the work produced is bad, or just not that good, it’s still somehow manufactured almost instantaneously, structure arising out of the void.
—Literary Hub, 21 Jan. 2026
Regional transmission organizations, regulated by the federal government, now operate across multiple states, distributing electricity on wholesale markets that respond instantaneously to demand.
—Nick Bowlin, Harpers Magazine, 30 Dec. 2025
Offers typically arrive instantaneously.
—Dan Bernstein, Sportico.com, 16 Dec. 2025
Maurizio Arseni, IEEE Spectrum, 4 Feb. 2026
Almost instantaneously a dark spot appeared on another ice ridge about 600 yards out.
—David Zeug, Outdoor Life, 4 Feb. 2026
The voltage on the floor arced up instantaneously.
—Billboard Japan, Billboard, 30 Jan. 2026
Measuring an electron’s spin on Earth could tell you instantaneously the spin of its entangled partner on Mars.
—Joseph Howlett, Scientific American, 27 Jan. 2026
Gold markets can be highly volatile and opinions in the sector may change instantaneously and without notice.
—Gaurav Sharma, Forbes.com, 23 Jan. 2026
ChatGPT-3 is rather like a silicone Sibyl, where even if the work produced is bad, or just not that good, it’s still somehow manufactured almost instantaneously, structure arising out of the void.
—Literary Hub, 21 Jan. 2026
Regional transmission organizations, regulated by the federal government, now operate across multiple states, distributing electricity on wholesale markets that respond instantaneously to demand.
—Nick Bowlin, Harpers Magazine, 30 Dec. 2025
Offers typically arrive instantaneously.
—Dan Bernstein, Sportico.com, 16 Dec. 2025
Recent Examples of Synonyms for instantaneously
Adverb
-
Meyer, an at-times combative career litigator, was brought in from the NHL Players Association in 2018 to add muscle to a bargaining team that was viewed as having surrendered ground in the negotiations for the 2017-2021 CBA, which was almost immediately panned as a loss for the players.—
Hannah Keyser,
CNN Money,
19 Feb. 2026
-
McKinnor didn’t immediately respond to a request for comment.—
Dakota Smith,
Los Angeles Times,
19 Feb. 2026
Adverb
-
But those technologies aren’t going away instantly.—
Julian Torres,
CNN Money,
22 Feb. 2026
-
Keranique formulas combine strengthening proteins, scalp-nourishing ingredients and lightweight volumizing technology to support thicker, fuller-looking hair for women of every age, and instantly boost the appearance of density, without weighing hair down.—
Tory Johnson,
ABC News,
21 Feb. 2026
Adverb
-
Realizing Shaw was off the base, Chapman promptly tagged him to complete a rare 4-3-6-5 triple play.—
Paul Sullivan,
Chicago Tribune,
22 Feb. 2026
-
Dry on low heat and remove promptly to keep sheets soft and prevent shrinking.—
Sarah Lyon,
The Spruce,
22 Feb. 2026
Adverb
-
The company says the platform now operates as a fully functional prototype demonstrator.—
Aamir Khollam,
Interesting Engineering,
21 Feb. 2026
-
Elsewhere, stories of economic gloom – from galloping inflation to restaurant closures and the knock-on impact of severe tax increases – describe the many ways in which the prolonged war in Ukraine is now hitting Russians hard in the pocket at home.—
Matthew Chance,
CNN Money,
21 Feb. 2026
Adverb
-
Instead, the women and their husbands found out about the data center project from speaking directly to the workers hired to move dirt and dig runoff ditches ahead of construction.—
Kansas City Star,
Kansas City Star,
20 Feb. 2026
-
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.—
Harriet Marsden,
TheWeek,
20 Feb. 2026
Cite this Entry
“Instantaneously.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneously. Accessed 25 Feb. 2026.
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