Synonyms|439Antonyms|85|Broader|1Narrower|0Related|197
8
chop-chop(adverb, fast, quickly, rapidly, pronto)
8
fleetly(adverb, immediately, quickly, rapidly, soon)
8
in haste(adverb, fast, quickly, rapidly, pronto)
7
forthwith(adverb, punctually)
7
like greased lightning(expression, idiom, adverb, quickly, rapidly)
7
posthaste(adjective, adverb, fast, velocity, immediately)
7
suddenly(adverb, hastily, unexpectedly, impulsively, abruptly)
7
swift(quickly, rapidly, snappily, speedily, posthaste)
6
in no time(expression, idiom, adverb, quickly, rapidly)
6
quick(quickly, rapidly, soon, snappily, speedily)
6
readily
6
right away
6
snappily(adverb, soon, posthaste)
6
soon(adverb, directly, immediately, quickly, rapidly)
6
straightaway
5
nimbly
4
agilely
4
double-quick(adverb, soon, hastily, snappily, impulsively)
4
feverishly(adverb, hastily)
4
in a trice(expression, idiom, adverb)
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APASmart Define. (2016). swiftly thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/swiftly/thesaurus/synonyms
ChicagoSmart Define. 2016. "swiftly thesaurus" https://smartdefine.org/swiftly/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, swiftly thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/swiftly/thesaurus/synonyms>.
MLASmart Define. "swiftly thesaurus" 25 January 2016. Web. 20 September 2026. <https://smartdefine.org/swiftly/thesaurus/synonyms>