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.

Something that is instantaneous happens immediately and very quickly. Death was instantaneous because both bullets hit the heart.

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

1. Occurring or completed without perceptible delay: Relief was instantaneous. 2. Done or made as quickly or directly as possible: an instantaneous reply to my letter. 3. Present or occurring …

instantaneous, adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary

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

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 …