instantaneous
adjective
in·stan·ta·neous
ˌin(t)-stən-ˈtā-nē-əs 
-nyəs
1
: done, occurring, or acting without any perceptible duration of time
death was instantaneous
2
: done without any delay being purposely introduced
took instantaneous corrective action
3
: occurring or present at a particular instant
instantaneous velocity
instantaneousness
noun
Examples of instantaneous in a Sentence
We got an almost instantaneous response from the company.
the thunder following the flash of lightning was nearly instantaneous
Recent Examples on the Web
The engravings -- both on the replicas and the real trophy -- are almost instantaneous, something Wimbledon does deliberately and takes a great amount of pride in.
—
Jon Haworth, ABC News, 14 July 2024
The interiors, which have a muted, silvery-white palette, provide guests with an almost instantaneous calm.
—Laura Itzkowitz, Architectural Digest, 24 June 2024
With the craft's communications failing within the first two hours, the submersible imploded upon descent, resulting in their instantaneous deaths.
—Dan Snierson, EW.com, 13 June 2024
The instantaneous launch opportunity Wednesday is set for 10:52 am EDT (14:52 UTC), when the launch site at Cape Canaveral passes underneath the space station's orbital plane.
—Stephen Clark, Ars Technica, 5 June 2024
See all Example Sentences for instantaneous 
Jon Haworth, ABC News, 14 July 2024
The interiors, which have a muted, silvery-white palette, provide guests with an almost instantaneous calm.
—Laura Itzkowitz, Architectural Digest, 24 June 2024
With the craft's communications failing within the first two hours, the submersible imploded upon descent, resulting in their instantaneous deaths.
—Dan Snierson, EW.com, 13 June 2024
The instantaneous launch opportunity Wednesday is set for 10:52 am EDT (14:52 UTC), when the launch site at Cape Canaveral passes underneath the space station's orbital plane.
—Stephen Clark, Ars Technica, 5 June 2024
See all Example Sentences for instantaneous
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'instantaneous.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near instantaneous
Cite this Entry
“Instantaneous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/instantaneous. Accessed 26 Jul. 2024.
Copy CitationKids Definition
instantaneous
adjective
in·stan·ta·neous
ˌin(t)-stən-ˈtā-nē-əs
-nyəs
1
: happening in an instant
2
: done without delay
instantaneously
adverb
instantaneousness
noun
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