The meaning of INSTANTANEOUS is done, occurring, or acting without any perceptible duration of time. How to use instantaneous in a sentence.

INSTANTANEOUS definition: 1. happening immediately, without any delay: 2. happening immediately, without any delay: 3…. Learn more.

Question A reader recently asked, “What is the difference between instant and instantaneous?” Answer This is a good question, because these two words have very similar meanings. Part of …

Instantaneous definition: occurring, done, or completed in an instant.. See examples of INSTANTANEOUS used in a sentence.

Definition of instantaneous adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

3 meanings: 1. occurring with almost no delay; immediate 2. happening or completed within a moment 3. mathematics a. occurring.... Click for more definitions.

Define instantaneous. instantaneous synonyms, instantaneous pronunciation, instantaneous translation, English dictionary definition of instantaneous. adj. 1. Occurring or completed …

Jul 23, 2025 · instantaneous (not comparable) Occurring, arising, or functioning without any delay; happening within an imperceptibly brief period of time. [from 17th c.] synonyms quotations …

Synonyms for INSTANTANEOUS: immediate, instant, rapid, split-second, swift, summary, straightaway, quick; Antonyms of INSTANTANEOUS: slow, prolonged, sluggish ...

occurring, done, or completed in an instant: an instantaneous response. existing at or pertaining to a particular instant: the instantaneous position of the rocket.