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
The Babel Fish is invisible and instantaneous, not science fiction so much as fantasy.
—
Matteo Wong, The Atlantic, 16 Oct. 2025
The doomed vessel imploded near the Titanic wreck in the North Atlantic Ocean in 2023, resulting in the instantaneous death of all five occupants.
—Michael Dorgan, FOXNews.com, 16 Oct. 2025
With a speedy Intel i3 processor, ChromeOS can shine with effortless multitasking and instantaneous startup.
—PC Magazine, 9 Oct. 2025
The connection was instantaneous, the shelter said.
—Tj MacIas, Miami Herald, 7 Oct. 2025
See All Example Sentences for instantaneous
Matteo Wong, The Atlantic, 16 Oct. 2025
The doomed vessel imploded near the Titanic wreck in the North Atlantic Ocean in 2023, resulting in the instantaneous death of all five occupants.
—Michael Dorgan, FOXNews.com, 16 Oct. 2025
With a speedy Intel i3 processor, ChromeOS can shine with effortless multitasking and instantaneous startup.
—PC Magazine, 9 Oct. 2025
The connection was instantaneous, the shelter said.
—Tj MacIas, Miami Herald, 7 Oct. 2025
See All Example Sentences for instantaneous
Recent Examples of Synonyms for instantaneous
Adjective
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These trends will have immediate electoral consequences.—
Tom Rogers,
MSNBC Newsweek,
6 Nov. 2025
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What set him apart early was his willingness to apply his technical knowledge to fields and tasks that went beyond his immediate responsibilities.—
Daniel Fusch,
USA Today,
6 Nov. 2025
Adjective
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Save as a collection on MyRecipes Made with everyone's favorite seasonal vegetables and flavors, these dishes are guaranteed to be an instant hit at Thanksgiving dinner.—
Kimberly Holland,
Southern Living,
5 Nov. 2025
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Maximum Strength Mucinex Fast-Max Kickstart Severe Cold & Flu (All-in-One) in menthol flavor delivers powerful, multi-symptom relief and an instant cooling sensation in just one four-hour dose.—
Adam Mills,
MSNBC Newsweek,
5 Nov. 2025
Cite this Entry
“Instantaneous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneous. Accessed 7 Nov. 2025.
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