0
double-time(directly, immediately, rapidly, instantly)
0
evanescently(adverb, transiently)
0
exigently
0
extemporaneously(adverb, impulsively)
0
first(now, directly, immediately, promptly)
0
first off
0
flickeringly(adverb, transiently)
0
freshly(first, now, directly, immediately, promptly)
0
hereupon(directly, immediately, rapidly, instantly)
0
impermanently(adverb, transiently)
0
impulsively(adverb, impulsively)
0
in a New York minute(expression, idiom, directly, immediately, rapidly)
0
a' vue d'oeil(expression, idiom, earliness)
0
abundance
0
ado
0
agitated
0
agitation
0
almost
0
almost immediately(expression, idiom, earliness)
0
amain
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APASmart Define. (2015). instantaneously thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/instantaneously/thesaurus/synonyms
ChicagoSmart Define. 2015. "instantaneously thesaurus" https://smartdefine.org/instantaneously/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, instantaneously thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/instantaneously/thesaurus/synonyms>.
MLASmart Define. "instantaneously thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/instantaneously/thesaurus/synonyms>