9
straight off(verb, expression, adverb, phrasal verb, time)
8
summarily(adverb, delay, first, now, directly)
8
in no time(noun, expression, idiom, first, freely)
7
closely(adverb, directly, nearly)
7
instanter(adverb, instantaneity)
7
apace(quickly, rapidly, haste, speedily, earliness)
7
contiguously(adverb, directly, at once)
7
currently(adverb, directly, instantly, at once, currently)
7
in a wink(noun, expression, idiom, adverb)
7
rapidly(adverb, fast, directly, quickly, instantly)
7
right off(verb, expression, adverb, phrasal verb, time)
7
straight(adverb, earliness)
7
straightway
7
suddenly(adverb, directly, rapidly, instantly, promptly)
7
without hesitation(expression, adverb, straight, freely, easily)
6
expeditiously(adverb, directly, quickly, rapidly, instantly)
6
readily(adverb, quickly, willingly, effortlessly)
6
fast(adjective, quickly, rapidly, speedily)
6
momentarily
6
on the spot(expression, idiom, adverb, instantaneity, earliness)
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APASmart Define. (2016). immediately thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/immediately/thesaurus/synonyms
ChicagoSmart Define. 2016. "immediately thesaurus" https://smartdefine.org/immediately/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, immediately thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/immediately/thesaurus/synonyms>.
MLASmart Define. "immediately thesaurus" 24 February 2016. Web. 21 September 2026. <https://smartdefine.org/immediately/thesaurus/synonyms>