140 entries under adverb topic. ×

10
soon(directly, immediately, quickly, rapidly)
9
forthwith(earliness, punctually)
9
right away
8
in haste(fast, quickly, rapidly, pronto)
8
quick(adjective, early, quickly, rapidly)
8
straightaway
7
like a shot(fast, quickly, rapidly, pronto)
7
fleetly(quick, early, immediately, quickly)
6
double-quick(adjective, quick, rapidly, hastily)
6
in no time(expression, idiom, freely, immediately)
6
posthaste(adjective, fast, quick, early)
6
readily(quickly, effortlessly)
6
summarily(delay, earliness)
6
swift(adjective, quickly, rapidly)
5
feverishly
5
snappily
4
cursorily
4
like greased lightning(expression, idiom, quickly, rapidly)
4
nimbly(vigorously, earnestly, actively, hastily)
4
on the double(expression, idiom, directly, immediately)
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APASmart Define. (2015). speedily thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/speedily/thesaurus/synonyms
ChicagoSmart Define. 2015. "speedily thesaurus" https://smartdefine.org/speedily/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, speedily thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/speedily/thesaurus/synonyms>.
MLASmart Define. "speedily thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/speedily/thesaurus/synonyms>