Synonyms|273Antonyms|44|Broader|4Narrower|0Related|143
1
now or never(expression, idiom, directly, immediately, rapidly)
1
on the double(expression, idiom, directly, immediately, rapidly)
1
on the nail(expression, idiom)
1
on the spur of the moment
1
passingly(adverb, transiently)
1
pdq(directly, immediately, rapidly, instantly)
1
plump(instantaneity, inexpectation)
1
posthaste(velocity, haste)
1
precipitately
1
presently
1
presto(first, now, directly, immediately, promptly)
1
primitively(first, now, directly, immediately, promptly)
1
rashly(adverb, impulsively)
1
recently(first, now, directly, immediately, promptly)
1
reflexively(adverb, impulsively)
1
relevant
1
restlessly(adverb, transiently)
1
right off(adverb, directly)
1
rootlessly(adverb, transiently)
1
seasonably(first, now, directly, immediately, promptly)
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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>