23
immediately(conjunction, british, adverb, time, moment)
17
once(conjunction, noun, adjective, adverb, time)
15
instantly(adverb, time, moment, immediately)
13
as quickly as(expression, hurry, possibility)
10
when(conjunction, noun, adverb, time, moment)
10
as expeditiously as(expression, hurry, possibility)
10
as fast as(expression, hurry, possibility)
10
as speedily as(expression, hurry, possibility)
10
at once(adverb, time, immediately, soon)
10
immediately after(expression, immediately, after)
7
right after(expression, immediately, after)
6
right away(verb, adverb, phrasal verb, time, happening)
5
at the earliest possible time(hurry, expression, possibility)
5
at the same time(adverb, instant, soon)
5
forthwith(adverb, moment, immediately)
5
shortly(adverb, time, immediately, soon)
5
very short time after(expression, immediately, after)
4
after a short period of time(expression, immediately, after)
4
anon(adjective, adverb, moment, immediately)
4
as early as(expression, hurry, possibility)
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APASmart Define. (2016). as soon as thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/as_soon_as/thesaurus/synonyms
ChicagoSmart Define. 2016. "as soon as thesaurus" https://smartdefine.org/as_soon_as/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, as soon as thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/as_soon_as/thesaurus/synonyms>.
MLASmart Define. "as soon as thesaurus" 24 February 2016. Web. 21 September 2026. <https://smartdefine.org/as_soon_as/thesaurus/synonyms>