Speedy
Speedy adjective - Moving, proceeding, or acting with great speed.
Supersonic and speedy are semantically related in fast topic. In some cases you can use "Supersonic" instead an adjective "Speedy".
Supersonic
Supersonic adjective - Of speed) greater than the speed of sound in a given medium (especially air.
Speedy and supersonic are semantically related in very fast topic. You can use "Speedy" instead an adjective "Supersonic".
Mutual synonyms
Cite this Source
Supersonic and Speedy. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/speedy/supersonic
Speedy & Supersonic. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/speedy/supersonic>.
Supersonic or Speedy. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/speedy/supersonic.
Google Ngram Viewer shows how "speedy" and "supersonic" have occurred on timeline