instantaneous

adjective

ˌin(t)-stən-ˈtā-nē-əs How to pronounce instantaneous (audio)
Definition of instantaneousnext
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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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of instantaneous However, those techniques could only provide long-term averages rather than instantaneous measurements. — Rupendra Brahambhatt, Interesting Engineering, 10 May 2026 With the craft's communications failing within the first two hours, the submersible imploded upon descent, resulting in their instantaneous deaths. — Dan Snierson, Entertainment Weekly, 16 June 2026 This automates the quality assurance process, replacing slow manual review with instantaneous digital flows. — Ali Hoss, Forbes.com, 30 June 2026 Stranger Things debuted to instantaneous success on the streaming platform in 2016, concluding its five-season run last New Year’s Eve. — Natalie Oganesyan, Deadline, 24 May 2026 See All Example Sentences for instantaneous
Recent Examples of Synonyms for instantaneous
  1. immediate
  2. instant
Adjective
  • The report's authors said the case highlights the importance of seeking immediate medical evaluation after any direct contact with a bat, even if there is no visible bite or scratch.
    — Anthony Thompson, USA Today, 2 July 2026
  • The tang of the sauce was eye-widening and immediate, crackling with the bright, citrusy charge of tomatillos and serrano chiles.
    — Jenn Harris, Los Angeles Times, 2 July 2026
Definition of immediate
Adjective
  • That one phrase tries to create an instant emotional connection.
    — Kurt Knutsson, FOXNews.com, 5 July 2026
  • The recipe leans on instant pudding mix and strawberry gelatin to keep things extra effortless.
    — Mary Shannon Wells, Southern Living, 5 July 2026
Definition of instant

Browse Nearby Words

instant
instantaneous
instantaneously
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Cite this Entry

“Instantaneous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneous. Accessed 7 Jul. 2026.

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More from Merriam-Webster on instantaneous

Nglish: Translation of instantaneous for Spanish Speakers

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