Synonyms and Antonyms of instantaneous
done or occurring without any noticeable lapse in time <the thunder following the flash of lightning was nearly instantaneous> Synonyms immediate, instant, split-second, straightaway Related Words summary; fast, hit-and-run, prompt, quick, rapid, speedy, swift Near Antonyms dilatory, tardy; slow, sluggish; prolonged, protracted; deferred, delayed
Learn More about instantaneous
Dictionary: Definition of "instantaneous" Spanish Central: Translation of "instantaneous" Nglish: Translation of "instantaneous" for Spanish speakers Britannica English: Translation of "instantaneous" for Arabic speakers
Seen and Heard
What made you want to look up instantaneous? Please tell us where you read or heard it (including the quote, if possible).