as in immediate
done or occurring without any noticeable lapse in time
the thunder following the flash of lightning was nearly instantaneous
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Example Sentences
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Recent Examples of instantaneous
By establishing secure, aggregated data-sharing APIs with the BLS, payroll processors could provide a near-instantaneous and comprehensive view of both W-2 and 1099 employment.
—
Jeff Gapusan, Forbes.com, 17 Sep. 2025
Allergic Reactions Contact-allergic reactions to makeup can be either delayed or instantaneous.
—Anna Giorgi, Verywell Health, 12 Sep. 2025
The position, size and type of injury hinted at a small but fast-moving object; a larger object would have caused more serious damage, and death probably would have been instantaneous, the study authors reported.
—Mindy Weisberger, CNN Money, 29 Aug. 2025
But, even in our current age of instantaneous information exchange, this dynamic remains highly recognizable.
—Jon Allsop, New Yorker, 29 Aug. 2025
See All Example Sentences for instantaneous
Jeff Gapusan, Forbes.com, 17 Sep. 2025
Allergic Reactions Contact-allergic reactions to makeup can be either delayed or instantaneous.
—Anna Giorgi, Verywell Health, 12 Sep. 2025
The position, size and type of injury hinted at a small but fast-moving object; a larger object would have caused more serious damage, and death probably would have been instantaneous, the study authors reported.
—Mindy Weisberger, CNN Money, 29 Aug. 2025
But, even in our current age of instantaneous information exchange, this dynamic remains highly recognizable.
—Jon Allsop, New Yorker, 29 Aug. 2025
See All Example Sentences for instantaneous
Recent Examples of Synonyms for instantaneous
Adjective
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But she’s batted against by her own clients — including Danielle Macdonald, who is terminally afraid of accidentally killing her own newborn child — and the medical administration hovering around her daughter, demanding immediate improvements or else.—
Ryan Lattanzio,
IndieWire,
9 Oct. 2025
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Beyond just the basic immediate subsistence, can Gaza survive?—
Isaac Chotiner,
New Yorker,
9 Oct. 2025
Adjective
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Secure, redundant communication systems ensure instant presidential command, while E-6B airborne launch control aircraft can assume control if ground communication is lost, guaranteeing uninterrupted deterrence capability.—
Neetika Walter,
Interesting Engineering,
9 Oct. 2025
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Speaking of lids, they’re crafted with Tupperware’s classic sunburst design and feature the brand’s signature instant seal lid to lock in freshness and prevent leaks and spills.—
Alicia Geigel,
Southern Living,
8 Oct. 2025
Cite this Entry
“Instantaneous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneous. Accessed 15 Oct. 2025.
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