Instantaneous and Quickest

Instantaneous

Instantaneous adjective - Done or occurring without any noticeable lapse in time.

Quickest and instantaneous are semantically related In some cases you can replace term "Quickest" with "Instantaneous", this adjectives are similar.

Quickest

Quickest adverb - Most quickly.

Instantaneous and quickest are semantically related in fast topic. Sometimes you can use "Instantaneous" instead an adjective "Quickest".
Cite this Source
Quickest and Instantaneous. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/instantaneous/quickest
Instantaneous & Quickest. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/instantaneous/quickest>.
Quickest or Instantaneous. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/instantaneous/quickest.
Google Ngram Viewer shows how "instantaneous" and "quickest" have occurred on timeline