Instantaneous
Happening or done in an instant; immediate, with no perceptible delay.
adjectiveInstantaneous
Happening or done in an instant; immediate, with no perceptible delay.
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Imagine This
Imagine flipping a light switch and the room becomes fully lit in a flash; there is no waiting or gradual brighteningโeverything happens instantaneously.
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Sounds Like
in-STAN-tee-uh-nษs
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Looks Like
looks like 'instant' with the suffix '-aneous'
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Remember This
Used for reactions, changes, or measurements that occur at a single moment. Common in science contexts (instantaneous velocity) and everyday speech (an instantaneous decision).
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Other Forms
instantaneouslyadverb
instantaneousnessnoun
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Connect With
immediate, instant, rapid, sudden, prompt, instantaneous velocity
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Note
Do not use for gradual changes or long processes. Distinguish from 'instant' as a noun or time moment; 'instantaneous' emphasizes no delay.