Meaning & use
instantaneously
Happening immediately, at that very instant, without any delay or pause in between.
See it in a sentence
The lights came on instantaneously the moment she flipped the switch.
News of the earthquake spread instantaneously across social media around the world.
A note on using this word
Instantaneously is a more formal, longer alternative to 'instantly,' often used in scientific or technical writing.
Words with a similar meaning
immediatelyinstantly
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
Make it your own
Write a sentence using “instantaneously”, then compare your use with the examples above.
Your draft stays on this page and is not sent anywhere.