Flash and Impromptu

Flash

Flash adjective - Lasting only for a short time.

Impromptu and flash are semantically related. In some cases you can use "Impromptu" instead an adjective "Flash".

Impromptu

Impromptu adjective - Made or done without previous thought or preparation.

Flash and impromptu are semantically related. Sometimes you can use "Flash" instead an adjective "Impromptu".

Both words in one sentence

  • Aerosol Flamethrower In True Lies, Arnold Schwarzenegger uses a gas-truck nozzle and the muzzle flash from his submachine gun to make a rather disturbingly powerful impromptu flamethrower.
  • Good Old Fisticuffs Subverted near the beginning of Royal Flash , Flashman witnesses an impromptu match between Otto von Bismarck and retired bareknuckle boxer John Gully.
Cite this Source
Impromptu and Flash. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/flash/impromptu
Flash & Impromptu. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/flash/impromptu>.
Impromptu or Flash. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/flash/impromptu.
Google Ngram Viewer shows how "flash" and "impromptu" have occurred on timeline