Synonyms|439Antonyms|85|Broader|1Narrower|0Related|197
3
shot
3
straight away(adverb, directly, immediately, instantly)
3
summarily(adverb, delay)
3
time
2
all at once(expression, idiom, adverb, quickly, unexpectedly)
2
at full speed(expression, idiom, adverb, velocity)
2
flat
2
flat out
2
furiously
2
hand
2
hell for leather(expression, idiom)
2
impetuously
2
impulsively
2
in a jiffy(expression, idiom, adverb)
2
in an instant(expression, idiom, adverb)
2
in double time(expression, idiom, adverb, soon, snappily)
2
in high gear(expression, idiom, adverb, soon, snappily)
2
in nothing flat(expression, idiom, adverb, directly, quickly)
2
in short order(expression, idiom, adverb, quickly, rapidly)
2
leap
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APASmart Define. (2016). swiftly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/swiftly/thesaurus/synonyms
ChicagoSmart Define. 2016. "swiftly thesaurus" https://smartdefine.org/swiftly/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, swiftly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/swiftly/thesaurus/synonyms>.
MLASmart Define. "swiftly thesaurus" 25 January 2016. Web. 22 September 2026. <https://smartdefine.org/swiftly/thesaurus/synonyms>