instantaneous

/ˌɪnstənˈteɪniəs/
adjective
  1. Happening or done immediately, without any delay.
    • When she pressed the button, there was an instantaneous response from the machine.
    • The pain was instantaneous the moment he touched the hot stove.
    • The internet allows for instantaneous communication across the globe.
Antonyms
What does "instantaneous" mean? | whatsthatwordmean | whatsthatwordmean