25
shortly(adjective, adverb, quick, directly, immediately)
21
anon(adverb, quickly, rapidly, later, earliness)
21
before long(expression, idiom, adverb, quickly, rapidly)
18
presently(adverb, time, quickly, rapidly, forthwith)
18
quickly(adjective, adverb, immediately, rapidly, swiftly)
16
promptly(adverb, time, quick, directly, immediately)
12
by and by(verb, expression, idiom, adverb, phrasal verb)
10
early(adjective, adverb, prompt, quick, unwarranted)
10
instantly(adverb, first, now, directly, immediately)
9
directly(adverb, quick, first, now, immediately)
9
pronto(adjective, adverb, quick, immediate, directly)
9
ere long(expression, adjective, idiom, adverb, quick)
9
hastily(adverb, quickly, rapidly, speedily, earliness)
9
immediately(adverb, quick, first, now, directly)
9
quick(adjective, adverb, prompt, immediate, directly)
8
speedily(adverb, directly, immediately, quickly, rapidly)
8
in a jiffy(expression, idiom, adverb, first, directly)
8
betimes(adverb, prompt, quick, first, timely)
8
in short order(expression, idiom, adverb, quickly, rapidly)
8
now(adverb, time, directly, immediately, rapidly)
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APASmart Define. (2015). Soon thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/soon/thesaurus/synonyms
ChicagoSmart Define. 2015. "Soon thesaurus" https://smartdefine.org/soon/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, Soon thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/soon/thesaurus/synonyms>.
MLASmart Define. "Soon thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/soon/thesaurus/synonyms>