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in·stan·ta·ne·ous
 instantaneous
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- pronunciation:
- In
st
 n
teI
ni
s
- features:
- Word Combinations (adjective)
| part of speech: |
adjective |
| definition: |
happening or done immediately or at the same instant.
Their response was instantaneous.
- synonyms:
- immediate, instant, split-second
- similar words:
- fast, prompt, quick, rapid, speedy, swift
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| related words: |
abrupt, flash |
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| derivations: |
instantaneously (adv.), instantaneousness (n.) |
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