C2adjectiveformaltechnologyscience
US/ˌɪn.stənˈteɪ.ni.əs/
UK/ˌɪn.stənˈteɪ.ni.əs/
happening immediately, with no delay at all
In context
Messaging apps have made instantaneous communication across the world normal.
The effect of the new painkiller was almost instantaneous.
Sensors give instantaneous readings of air quality on every street.
Words that go with instantaneous
adverb + adjective
- almost instantaneousThe response from the server was almost instantaneous.
- nearly instantaneousPayment by QR code is nearly instantaneous.
adjective + noun
- instantaneous communicationSatellites allow instantaneous communication with ships at sea.
- instantaneous speedThe radar measures the car's instantaneous speed.
- instantaneous feedbackThe app gives instantaneous feedback on your pronunciation.