4
spanking(adjective, fast)
4
zealous
4
zippy(adjective, urgent)
3
western fence lizard(noun, expression, idiom)
3
acute(adjective, sharp, energetic, lively, alert)
3
allegro(adjective, fast)
3
bird(noun, bird)
3
blue-belly
3
bustling(adjective, hasty)
3
dizzy(adjective, urgent)
3
fast-paced
3
fleet-footed(adjective, fast, urgent)
3
fleetly(adverb, quickly, rapidly, swiftly, snappily)
3
flickering
3
furious(violent, fierce, ardent, impulsive, rash)
3
hummingbird(noun, bird)
3
impatient(adjective, violent, fast, irritable, quick)
3
keen(adjective, fast, rapid)
3
limber
3
lithe
10 years ago|26k views|share |citing 
APASmart Define. (2016). swift thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/swift/thesaurus/synonyms
ChicagoSmart Define. 2016. "swift thesaurus" https://smartdefine.org/swift/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, swift thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/swift/thesaurus/synonyms>.
MLASmart Define. "swift thesaurus" 1 April 2016. Web. 22 September 2026. <https://smartdefine.org/swift/thesaurus/synonyms>