2
asap(fast, rapid, swift)
2
breakneck(hot, fast, quick, rapid, nimble)
2
brisk(hot, fast, quick, nimble, speedy)
2
chop chop(expression, soon, swiftly, snappily)
2
double-time(hot, quick, speedy, directly, immediately)
2
early(adjective, prompt, quick, timely, rapidly)
2
expeditious(hot, fast, quick, rapid, nimble)
2
fleet(hot, fast, quick, rapid, nimble)
2
fleetly(early, quickly, rapidly, soon, swiftly)
2
flying(hot, fast, quick, abrupt, rapid)
2
hurried(hot, fast, quick, rapid, nimble)
2
in a wink
2
lickety split(expression, hot, quick, nimble, speedy)
2
like a bat out of hell(expression, idiom, adverb, hot, fast)
2
like mad(expression, hot, quick, abrupt, nimble)
2
like now(expression, now, directly, immediately, rapidly)
2
nimble(adjective, hot, fast, quick, summary)
2
on short notice(expression, quick, immediate, directly, immediately)
2
on the dot(expression, quick, immediate, directly, immediately)
2
on the spot(expression, idiom, directly, immediately, rapidly)
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APASmart Define. (2015). pronto thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/pronto/thesaurus/synonyms
ChicagoSmart Define. 2015. "pronto thesaurus" https://smartdefine.org/pronto/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, pronto thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/pronto/thesaurus/synonyms>.
MLASmart Define. "pronto thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/pronto/thesaurus/synonyms>