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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Recent Examples of instantaneous
Collapsible legs fold out, creating an instantaneous cooking platform (no need to find a picnic table or flat-ish rock), and burners blast 30,000 BTUs each for searing and sizzling.
—
Drew Zieff, Outside Online, 8 July 2025
This reporter live-streamed it, so the fan response was instantaneous.
—Ramon Ramirez, Austin American Statesman, 2 July 2025
Looking Forward Implementing continuous learning isn’t an instantaneous choice.
—Prasanna Parthasarathy, Forbes.com, 2 July 2025
The entire system worked with latency down to around 10 milliseconds—the conversion of brain signals into sounds was effectively instantaneous.
—ArsTechnica, 29 June 2025
See All Example Sentences for instantaneous
Drew Zieff, Outside Online, 8 July 2025
This reporter live-streamed it, so the fan response was instantaneous.
—Ramon Ramirez, Austin American Statesman, 2 July 2025
Looking Forward Implementing continuous learning isn’t an instantaneous choice.
—Prasanna Parthasarathy, Forbes.com, 2 July 2025
The entire system worked with latency down to around 10 milliseconds—the conversion of brain signals into sounds was effectively instantaneous.
—ArsTechnica, 29 June 2025
See All Example Sentences for instantaneous
Recent Examples of Synonyms for instantaneous
Adjective
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An overwhelming majority of the world's climate scientists have stressed that an immediate reduction in the burning of fossil fuels, including coal, is imperative to averting the worst consequences of climate change, including extreme heat, more powerful storms and deadly floods.—
Connor Giffin,
The Courier-Journal,
30 July 2025
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First, there are a spate of short-term projects intended to alleviate the immediate stress for passengers.—
Beck Andrew Salgado,
Austin American Statesman,
30 July 2025
Adjective
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Adults often expect instant fixes: a new mattress, a melatonin gummy, a podcast that promises deep REM cycles in 12 minutes.—
Michelle Stansbury,
Forbes.com,
22 July 2025
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The show aired 52 episodes between 2002 and 2005 and was an instant sensation.—
Victoria Edel,
People.com,
22 July 2025
Cite this Entry
“Instantaneous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneous. Accessed 3 Aug. 2025.
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