Instantaneous and Straightaway

Instantaneous

Instantaneous adjective - Done or occurring without any noticeable lapse in time.
Usage example: the thunder following the flash of lightning was nearly instantaneous

Straightaway and instantaneous are semantically related. In some cases you can use "Straightaway" instead an adjective "Instantaneous".

Straightaway

Straightaway adjective - Done or occurring without any noticeable lapse in time.
Usage example: her first novel was a straightaway success

Instantaneous and straightaway are semantically related. Sometimes you can use "Instantaneous" instead an adjective "Straightaway".
Cite this Source
Straightaway and Instantaneous. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/instantaneous/straightaway
Instantaneous & Straightaway. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/instantaneous/straightaway>.
Straightaway or Instantaneous. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/instantaneous/straightaway.
Google Ngram Viewer shows how "instantaneous" and "straightaway" have occurred on timeline