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
While greenhouse gasses released into the atmosphere can linger for years, once air pollution is reduced the health benefits are nearly instantaneous.
—
Simmone Shah, Time, 22 Aug. 2025
For one thing, events such as the Locarno fest’s Aug. 8 presentation of its Leopard Club career achievement award to Emma Thompson, draw far more coverage and generate more buzz in the age of instantaneous online media.
—Cynthia Littleton, Variety, 11 Aug. 2025
If the comments and reaction videos on social media and seemingly instantaneous editorials are any indication, the new launch—which wraps around the chin and jawline, securing around the top of the head and behind the neck with velcro—hasn’t been met with universal excitement.
—Marci Robin, Allure, 31 July 2025
The effects felt almost instantaneous, and now steak night has become a monthly staple in the diary.
—Alyce Collins, MSNBC Newsweek, 25 July 2025
See All Example Sentences for instantaneous
Simmone Shah, Time, 22 Aug. 2025
For one thing, events such as the Locarno fest’s Aug. 8 presentation of its Leopard Club career achievement award to Emma Thompson, draw far more coverage and generate more buzz in the age of instantaneous online media.
—Cynthia Littleton, Variety, 11 Aug. 2025
If the comments and reaction videos on social media and seemingly instantaneous editorials are any indication, the new launch—which wraps around the chin and jawline, securing around the top of the head and behind the neck with velcro—hasn’t been met with universal excitement.
—Marci Robin, Allure, 31 July 2025
The effects felt almost instantaneous, and now steak night has become a monthly staple in the diary.
—Alyce Collins, MSNBC Newsweek, 25 July 2025
See All Example Sentences for instantaneous
Recent Examples of Synonyms for instantaneous
Adjective
-
Kraft caught the ball just 5 yards downfield and safety Will Harris had a chance to make an immediate tackle.—
Rob Reischel,
Forbes.com,
12 Sep. 2025
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His team have the immediate fixtures to succeed, facing Sunderland and West Ham next.—
Holly Shand,
New York Times,
11 Sep. 2025
Adjective
-
Barely any other media in recent times has given me an instant shock of glee or revulsion like this absurd anarcho-cartoon being stretched and squeezed to its most grotesque and wholesome clickbait limits.—
Kieran Press-Reynolds,
Pitchfork,
10 Sep. 2025
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Their desperate efforts to hide from the cameras became instant fodder for social media memes and late-night jokes and, eventually, for a cheeky video response from Astronomer, starring Martin’s ex-wife, Gwyneth Paltrow.—
Martha Ross,
Mercury News,
10 Sep. 2025
Cite this Entry
“Instantaneous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneous. Accessed 15 Sep. 2025.
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