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

38 entries under instantly topic. ×

22
without delay(noun, expression, idiom, adverb, directly)
20
at once(noun, expression, idiom, adverb, now)
18
right away(noun, verb, expression, adverb, phrasal verb)
13
straight away(noun, verb, expression, adverb, phrasal verb)
12
soon(adverb, quick, directly, immediately, quickly)
12
forthwith(adverb, now, directly, immediately, quickly)
11
readily(adverb, directly, immediately, quickly, heartily)
9
instanter(adverb, now, directly, immediately, quickly)
7
summarily(adverb, delay, first, directly, immediately)
6
now(adverb, directly, immediately, rapidly)
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
straight off(verb, expression, adverb, phrasal verb, directly)
4
fleetly(adverb, quick, early, quickly, rapidly)
4
in a jiffy(noun, expression, idiom, adverb, directly)
4
on the spot(expression, idiom, directly, immediately, rapidly)
4
right now(expression, idiom, adverb, now, directly)
3
away(adverb, now, directly, immediately, rapidly)
3
pdq(adverb, now, directly, immediately, rapidly)
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ChicagoSmart Define. 2016. "promptly thesaurus" https://smartdefine.org/promptly/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, promptly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/promptly/thesaurus/synonyms>.
MLASmart Define. "promptly thesaurus" 21 March 2016. Web. 24 September 2026. <https://smartdefine.org/promptly/thesaurus/synonyms>