15 entries under early topic. ×

7
rapidly(adverb, quick, quickly, hastily)
7
speedily(adverb, quick, immediately, quickly)
6
hastily(adverb, quick, immediately, quickly)
5
fast(adjective, immediately, quickly, rapidly)
5
posthaste(adjective, adverb, fast, quick)
4
expeditiously(adverb, quick, immediately, quickly)
4
promptly(adverb, quick, quickly, rapidly)
3
quick(adjective, quickly, rapidly, soon)
2
in short order(expression, idiom, quickly, rapidly)
2
pronto(quickly, rapidly, soon, swiftly)
1
by and by(expression, idiom, rapidly, soon)
1
coming down the pike(expression, idiom, rapidly, soon)
1
ere long(expression, rapidly, soon, swiftly)
1
in a second(expression, idiom, rapidly, soon)
1
in due time(expression, idiom, rapidly, soon)
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APASmart Define. (2013). fleetly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/fleetly/thesaurus/synonyms
ChicagoSmart Define. 2013. "fleetly thesaurus" https://smartdefine.org/fleetly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2013, fleetly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/fleetly/thesaurus/synonyms>.
MLASmart Define. "fleetly thesaurus" 28 June 2013. Web. 21 September 2026. <https://smartdefine.org/fleetly/thesaurus/synonyms>