1
nimble-footed
1
overeager
1
overenthusiastic
1
overzealous
1
panting
1
perfunctory(fast, quick, rapid, speedy, swift)
1
precarious
1
punctual
1
quick as lightning(expression, idiom)
1
quick as thought(expression, idiom)
1
quickened(fast, quick, speedy, brisk, hasty)
1
racing(hot, quick, rapid, nimble, speedy)
1
rattling(adjective, urgent)
1
refractory(violent, fast, quick)
1
short(adjective, quick, summary, rapid, speedy)
1
slap-bang
1
snap(hot, quick, rapid, nimble, speedy)
1
spanking
1
splitting(adjective, urgent)
1
spry(fast, quick, rapid, brisk, hasty)
10 years ago|6.8k views|share |citing 
APASmart Define. (2016). breakneck thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/breakneck/thesaurus/synonyms
ChicagoSmart Define. 2016. "breakneck thesaurus" https://smartdefine.org/breakneck/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, breakneck thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/breakneck/thesaurus/synonyms>.
MLASmart Define. "breakneck thesaurus" 1 April 2016. Web. 23 September 2026. <https://smartdefine.org/breakneck/thesaurus/synonyms>