Thesaurus
Synonyms & Antonyms of instantaneous
- the thunder following the flash of lightning was nearly instantaneous
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“Instantaneous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/instantaneous. Accessed 20 May. 2022.
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Time Traveler for instantaneous
The first known use of instantaneous was in 1651
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