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
During back flushes, the valve is never opened more than halfway; this allows for an instantaneous flow rate of no more than 27 gpm.
—
Staff Report, Hartford Courant, 25 Apr. 2026
Unlike traditional server loads, which are relatively flat and predictable, AI inference and training jobs generate sharp, near-instantaneous power spikes.
—Tejasri Gururaj, Interesting Engineering, 24 Apr. 2026
Because the data is instantaneous, even a single day off can set off 20 phone alerts.
—Aiko Bethea, Big Think, 22 Apr. 2026
One is instantaneous, the brain just flips into unrecognizable thoughts, and the other is a deterioration over time.
—Tony Maglio, HollywoodReporter, 21 Apr. 2026
See All Example Sentences for instantaneous
Staff Report, Hartford Courant, 25 Apr. 2026
Unlike traditional server loads, which are relatively flat and predictable, AI inference and training jobs generate sharp, near-instantaneous power spikes.
—Tejasri Gururaj, Interesting Engineering, 24 Apr. 2026
Because the data is instantaneous, even a single day off can set off 20 phone alerts.
—Aiko Bethea, Big Think, 22 Apr. 2026
One is instantaneous, the brain just flips into unrecognizable thoughts, and the other is a deterioration over time.
—Tony Maglio, HollywoodReporter, 21 Apr. 2026
See All Example Sentences for instantaneous
Recent Examples of Synonyms for instantaneous
Adjective
-
The race came amid a broader power struggle between the two sides of City Hall early in both Mamdani and Menin’s leadership, but the election will also have a more immediate impact.—
Josephine Stratman,
New York Daily News,
29 Apr. 2026
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No immediate impact likely for world oil markets The UAE’s withdrawal from OPEC won’t necessarily have any immediate effects in markets.—
Jon Gambrell,
Chicago Tribune,
29 Apr. 2026
Adjective
-
Silver coins are more liquid than bars because of their instant recognition from a government mint, as long as the condition of the coins is good.—
Amy DeYoung,
USA Today,
4 May 2026
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The charges, filed with the National Labor Relations Board, stem from the layoff or termination of all workers in the instant charge and group sales and subscription departments, the union said.—
Ted Johnson,
Deadline,
4 May 2026
Cite this Entry
“Instantaneous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneous. Accessed 10 May. 2026.
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