27 entries under instantaneity topic. ×

24
immediately(adverb, first, directly, quickly, haste)
19
at once(expression, idiom, adverb, directly, immediately)
12
right away(verb, expression, adverb, phrasal verb, directly)
10
instanter(adverb, directly, immediately, quickly, rapidly)
10
suddenly(adverb, suddenly, earliness, inexpectation)
5
in no time(expression, idiom, first, now, directly)
5
on the spot(expression, idiom, adverb, directly, immediately)
4
like a shot(expression, idiom, adverb, fast, quickly)
2
all at once(expression, idiom, adverb, haste)
2
early
2
extempore
2
in a trice(expression, idiom, adverb)
2
just then(expression, idiom)
1
in a moment(expression, idiom)
1
plump
1
presto(first, now, directly, immediately, promptly)
0
at a stroke(expression, idiom)
0
at one jump(expression, idiom)
0
haste
0
in one's tracks(expression, idiom)
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APASmart Define. (2015). instantaneously thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/instantaneously/thesaurus/synonyms
ChicagoSmart Define. 2015. "instantaneously thesaurus" https://smartdefine.org/instantaneously/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, instantaneously thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/instantaneously/thesaurus/synonyms>.
MLASmart Define. "instantaneously thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/instantaneously/thesaurus/synonyms>