Impromptu
Impromptu adjective - Made or done without previous thought or preparation.
Mutual synonyms
Both words in one sentence
- Hajime no Ippo - After a timely rescue from bullies (well, maybe not that timely) by passing jogger Takamura, Ippo gets an impromptu Boxing Lesson just for fun: punch bag, feel better.
Source: Accidental Athlete - The sisters seem to consider their stranded status an impromptu vacation (and given Commander Kahn's wearing a Hawaiian shirt when he calls the Agents out, he doesn't take it too seriously either); at level's end, they get off the island by flashing a diamond credit card at a passing jet.
Source: Rich Bitch
Cite this Source
Passing and Impromptu. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/impromptu/passing
Impromptu & Passing. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/impromptu/passing>.
Passing or Impromptu. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/impromptu/passing.
Google Ngram Viewer shows how "impromptu" and "passing" have occurred on timeline