Simple Definition of instantaneous
: happening very quickly : happening in an instant
Full Definition of instantaneous
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>
Examples of instantaneous
We got an almost instantaneous response from the company.
<the thunder following the flash of lightning was nearly instantaneous>
Origin of instantaneous
Medieval Latin instantaneus, from instant-, instans, noun
First Known Use: 1651
Learn More about instantaneous
Thesaurus: All synonyms and antonyms for "instantaneous" Spanish Central: Translation of "instantaneous" Nglish: Translation of "instantaneous" for Spanish speakers Britannica English: Translation of "instantaneous" for Arabic speakers
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