56 entries under quick topic. ×

37
abrupt(adjective, keen, sharp, passionate, violent)
27
hasty(adjective, keen, energetic, passionate, violent)
21
swift(adjective, passionate, violent, property, fast)
19
precipitate(noun, verb, adjective, sharp, passionate)
18
unforeseen(adjective, extraordinary, wonderful, abrupt)
17
precipitous(adjective, sharp, violent, fast)
16
impetuous(noun, adjective, keen, energetic, violent)
13
fast(adjective, irritable, abrupt, speedy)
12
hurried(adjective, fast, surprise, abrupt)
12
headlong(noun, adjective, keen, sharp, passionate)
10
rapid(adjective, fast, abrupt, speedy)
10
surprising(adjective, shock, wonderful, shocking)
8
impulsive(noun, adjective, extraordinary, careless, wonderful)
8
brisk(adjective, fast, rapid, speedy)
8
short(adjective, adverb, brief, abrupt)
7
precipitant(adjective, violent, fast, impulsive)
7
speedy(adjective, fast, abrupt, rapid)
6
expeditious(adjective, fast, abrupt, rapid)
6
fleet(adjective, fast, abrupt, rapid)
5
reckless(noun, adjective, careless, casual)
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APASmart Define. (2016). sudden thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sudden/thesaurus/synonyms
ChicagoSmart Define. 2016. "sudden thesaurus" https://smartdefine.org/sudden/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, sudden thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sudden/thesaurus/synonyms>.
MLASmart Define. "sudden thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/sudden/thesaurus/synonyms>