14 entries under instantaneity topic. ×

13
hasty(adjective, violent, fast, careful, quick)
11
precipitate(verb, adjective, careless, fast, careful)
10
precipitous(adjective, violent, fierce, quick, ardent)
9
sudden(adjective, violent, fast, quick, impulsive)
7
abrupt(adjective, violent, fast, fierce, quick)
3
immediate
2
discontinuous
2
instant
2
instantaneous
2
momentary
1
subitaneous(violent, fast, fierce, quick, ardent)
0
quick as lightning(expression, idiom)
0
quick as thought(expression, idiom)
0
rapid as electricity(expression, idiom)
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APASmart Define. (2015). precipitant thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/precipitant/thesaurus/synonyms
ChicagoSmart Define. 2015. "precipitant thesaurus" https://smartdefine.org/precipitant/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, precipitant thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/precipitant/thesaurus/synonyms>.
MLASmart Define. "precipitant thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/precipitant/thesaurus/synonyms>