instantaneously

adverb

as in immediately
without delay I had just slammed the car door shut when I instantaneously remembered that I had left the keys inside

Synonyms & Similar Words

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Antonyms & Near Antonyms

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 instantaneously The victim’s money is converted to cryptocurrency and instantaneously transferred across the globe. — Mike Ryan, Sun Sentinel, 24 Sep. 2026 Moreover, much of the footage on September 11 was digital, and therefore easier to compress electronically to share instantaneously. — David Friend, Vanity Fair, 10 Sep. 2026 Neurons don’t respond instantaneously to incoming signals; their responses can depend on input received over the previous few hundred milliseconds. — Anirban Mukhopadhyay, Scientific American, 7 Sep. 2026 More phones popped out to document this monumental scene when the chorus dropped and Engelbert instantaneously turned into an auntie. — Candace Buckner, New York Times, 5 Sep. 2026 Also, if the switch from side by side to one-front/one-back happened instantaneously, your brain would get confused about how to interpret the images delivered from each eye, since the setup would be quite different from what you were used to. — Abigail Witmer, The Conversation, 31 Aug. 2026 While fans have clamored for tickets, many were disappointed and frustrated with high prices and limited availability that seemed to sell out almost instantaneously. — Los Angeles Times, 21 Aug. 2026 The secret lies in servo motors at the end of each propeller arm, which instantaneously tilt the props fore and aft as needed. — New Atlas, 10 Aug. 2026 As the gas rapidly accumulates within these tiny crevices, the bubbles expand almost instantaneously and push the beverage violently out of the bottle to create a soda fountain, also called a geyser. — Encyclopedia Britannica, 5 Aug. 2026
Recent Examples of Synonyms for instantaneously
  1. immediately
  2. instantly
  3. promptly
  4. now
  5. directly
Adverb
  • His office did not immediately respond to questions from The Associated Press regarding a possible snap election.
    — JOSEPH WILSON, Arkansas Online, 3 Oct. 2026
  • Reps for Bryan and Gillette stadium did not immediately return a request for comment.
    — Charisma Madarang, Rolling Stone, 3 Oct. 2026
Definition of immediately
Adverb
  • There’s definitely something about a new TV that instantly makes the whole living room feel upgraded.
    — Juhi Wadia, PC Magazine, 1 Oct. 2026
  • However, redeeming points for a stay doesn’t instantly change your points expiration.
    — Jason Stauffer, CNBC, 1 Oct. 2026
Definition of instantly
Adverb
  • Contact the treating clinician promptly for worsening pain, spreading redness or warmth, pus-like drainage, fever, extensive blistering, eye symptoms, or a reaction substantially more severe than described.
    — Malana VanTyler, Miami Herald, 6 Oct. 2026
  • The company encouraged employees to use Microsoft Teams, but while some replied promptly, others put their own work first.
    — Bilin Lin, Fortune, 5 Oct. 2026
Definition of promptly
Adverb
  • Almost sounds silly now, with the way the team has stumbled and bumbled its way through the first four games.
    — Los Angeles Times, Los Angeles Times, 5 Oct. 2026
  • An institution built explicitly to neutralize biological catastrophes is now at the center of one.
    — Mrigakshi Dixit, Interesting Engineering, 5 Oct. 2026
Definition of now
Adverb
  • While the resulting hydrogen can help decarbonize industries that are difficult to electrify directly, its wider adoption has been constrained by its cost compared with hydrogen produced from fossil fuels.
    — Kaif Shaikh, Interesting Engineering, 9 Oct. 2026
  • In this region, soft, sandy beaches are abundant, not only directly in front of the resort but on both sides of it, and surfers can find some excellent, challenging breaks.
    — Condé Nast, Condé Nast Traveler, 9 Oct. 2026
Definition of directly

Browse Nearby Words

instantaneous
instantaneously
instanter
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Cite this Entry

“Instantaneously.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneously. Accessed 9 Oct. 2026.

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