Fast
Fast adjective - Having or showing quickness of mind.
Usage example: I don't know how to operate this machine, but I'm a fast learner
Supersmart and fast are semantically related. In some cases you can use "Supersmart" instead an adjective "Fast".
Supersmart
Supersmart adjective - Having or showing quickness of mind.
Usage example: a supersmart guy in college, he later founded a dot-com that's now worth gazillions
Fast and supersmart are semantically related. Sometimes you can use "Fast" instead an adjective "Supersmart".
Cite this Source
Supersmart and Fast. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/fast/supersmart
Fast & Supersmart. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/fast/supersmart>.
Supersmart or Fast. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/fast/supersmart.
Google Ngram Viewer shows how "fast" and "supersmart" have occurred on timeline