Synonyms|662Antonyms|133|Broader|4Narrower|0Related|376

79 entries under rapidly topic. ×

8
quick(adverb, prompt, early, directly, immediately)
7
in haste(adverb, fast, quickly, pronto)
7
summarily(adverb, delay, first, directly, immediately)
6
abruptly(adverb, fast, quickly, pronto)
6
chop-chop(adverb, fast, quickly, pronto)
6
now(adverb, directly, immediately, instantly)
6
on the double(expression, idiom, adverb, now, directly)
6
posthaste(adjective, adverb, fast, quick, early)
6
without hesitation(adverb, straight, directly, immediately, easily)
5
like a shot(expression, idiom, adverb, fast, quickly)
5
straight off(verb, expression, adverb, phrasal verb, directly)
4
fleetly(adverb, quick, early, quickly)
4
in a jiffy(noun, expression, idiom, adverb, directly)
4
on the spot(expression, idiom, directly, immediately)
4
on time(expression, idiom, adverb, early, precisely)
4
right now(expression, idiom, adverb, now, directly)
4
swift(quickly, speedily)
3
at speed(adverb, fast, quickly, pronto)
3
away(adverb, now, directly, immediately)
3
double-quick(quick, hastily, impulsively, rashly)
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APASmart Define. (2016). promptly thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/promptly/thesaurus/synonyms
ChicagoSmart Define. 2016. "promptly thesaurus" https://smartdefine.org/promptly/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, promptly thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/promptly/thesaurus/synonyms>.
MLASmart Define. "promptly thesaurus" 21 March 2016. Web. 26 September 2026. <https://smartdefine.org/promptly/thesaurus/synonyms>