Instantaneously and Immediately

Instantaneously

Instantaneously adverb - Without delay.
Usage example: I had just slammed the car door shut when I instantaneously remembered that I had left the keys inside
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Synonyms for Instantaneously

Immediately is a synonym for instantaneously in promptly topic. In some cases you can use "Immediately" instead the word "Instantaneously" as an adverb or an adjective, when it comes to topics like at once, spontaneously, instantly, forthwith. popular alternative

Nearby Word: instantaneous

Immediately

Immediately adverb - Without delay.
Usage example: if we don't leave immediately, we'll be late for the concert

Instantaneously is a synonym for immediately in at once topic. You can use "Instantaneously" instead the word "Immediately" as an adverb or an adjective, if it concerns topics such as spontaneously, instantly, forthwith, shortly. popular alternative

Nearby Words: immediate, immediacy
Cite this Source
Immediately and Instantaneously. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/instantaneously/immediately
Instantaneously & Immediately. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/instantaneously/immediately>.
Immediately or Instantaneously. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/instantaneously/immediately.
Google Ngram Viewer shows how "instantaneously" and "immediately" have occurred on timeline