19 entries under speedily topic. ×

19
expeditiously(adverb, directly, immediately, quickly, rapidly)
18
immediately(adverb, directly, quickly, rapidly, instantly)
8
fleetly(adverb, immediately, quickly, rapidly, soon)
7
like greased lightning(expression, idiom, adverb, quickly, rapidly)
7
posthaste(adjective, adverb, fast, velocity, immediately)
7
swift(quickly, rapidly, snappily, posthaste)
6
in no time(expression, idiom, adverb, quickly, rapidly)
6
quick(quickly, rapidly, soon, snappily)
6
soon(adverb, directly, immediately, quickly, rapidly)
3
flat-out(immediately, quickly, rapidly, hastily)
3
full tilt(expression, adverb, quickly, rapidly, soon)
3
in a flash(expression, idiom, adverb, directly, immediately)
3
like a flash(expression, idiom, adverb, quickly, rapidly)
3
presto(adverb, quickly, rapidly)
2
in nothing flat(expression, idiom, adverb, directly, quickly)
2
in short order(expression, idiom, adverb, quickly, rapidly)
2
like lightning(expression, adverb, quickly, rapidly)
2
like wildfire(expression, adverb, quickly, rapidly, soon)
0
at the double(expression, idiom, quickly, rapidly)
10 years ago|9.9k views|share |citing 
APASmart Define. (2016). swiftly thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/swiftly/thesaurus/synonyms
ChicagoSmart Define. 2016. "swiftly thesaurus" https://smartdefine.org/swiftly/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, swiftly thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/swiftly/thesaurus/synonyms>.
MLASmart Define. "swiftly thesaurus" 25 January 2016. Web. 25 September 2026. <https://smartdefine.org/swiftly/thesaurus/synonyms>