8
impetuous(adjective, keen, energetic, violent, active)
8
impulsive(adjective, quick, rash, reckless, impetuous)
8
nimble(adjective, prompt, hot, fast, quick)
8
precipitate(adjective, sharp, prompt, wild, fast)
7
abrupt(adjective, keen, sharp, violent, active)
7
brisk(adjective, prompt, hot, fast, quick)
7
fast paced(adjective, speed)
7
hotheaded(adjective, wild, thoughtless, rash, negligent)
7
rushing(adjective, violent, fast, quick, rash)
6
dashing(adjective, hot, fast, quick, nimble)
6
imprudent(adjective, careless, wild, bold, thoughtless)
6
incautious(adjective, careless, wild, quick, bold)
6
running(adjective, hasty)
5
daring(adjective, careless, wild, bold, thoughtless)
5
presto(adjective, hot, fast, quick, nimble)
5
thoughtless(adjective, wild, quick, rash, reckless)
4
active(adjective, prompt, hot, fast, quick)
4
adventurous(adjective, bad, nasty, careless, heavy)
4
agile(adjective, prompt, hot, fast, quick)
4
allegro(adjective, fast)
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APASmart Define. (2016). breakneck thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/breakneck/thesaurus/synonyms
ChicagoSmart Define. 2016. "breakneck thesaurus" https://smartdefine.org/breakneck/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, breakneck thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/breakneck/thesaurus/synonyms>.
MLASmart Define. "breakneck thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/breakneck/thesaurus/synonyms>