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
Chinese diplomatic backlash was instantaneous, with one Chinese official based in Tokyo threatening to cut off her head for the disrespect of her comments.
—
Timothy Nerozzi, The Washington Examiner, 29 Dec. 2025
The chemistry was natural and instantaneous.
—Lily Ford, HollywoodReporter, 11 Dec. 2025
What made the Dončić–Davis trade such a bewildering spectacle, aside from the lack of draft picks Dallas received, was the stunning absence of this preamble, and the instantaneous, universal agreement that the Mavericks had been fleeced.
—Brady Brickner-Wood, New Yorker, 15 Nov. 2025
There's a line in the movie where Godard says that the instantaneous and unexpected are excluded in formal narrative.
—Matthew Odam, Austin American Statesman, 12 Nov. 2025
See All Example Sentences for instantaneous
Recent Examples of Synonyms for instantaneous
Adjective
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The highly skilled team — including neonatologists, nurses, respiratory therapists, and pediatric specialists — provides immediate access to advanced treatments and technology, improving outcomes and offering families peace of mind.—
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The video also appeared to depict the officers did not take immediate steps to ensure that Good received emergency medical care after the shooting took place.—
Adjective
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View gallery - 5 images Fujifilm's been in the instant shoot-and-print camera business for more than 25 years now, and its newest offering is a fun departure from its longstanding lineup.—
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The show premiered to instant acclaim, winning five 2025 Emmy Awards, and has already been renewed for a third season.—
Cite this Entry
“Instantaneous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneous. Accessed 20 Jan. 2026.
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