5
rapidly(adverb, directly, immediately, quickly, instantly)
5
summarily(adverb, first, now, directly, immediately)
5
tout de suite(expression, adjective, adverb, directly, immediately)
5
without hesitation(expression, adverb, directly, immediately, rapidly)
4
expeditiously(adverb, directly, immediately, quickly, rapidly)
4
hastily(adverb, immediately, quickly, rapidly, speedily)
4
in a jiffy(noun, expression, adverb, directly, immediately)
4
lickety-split
4
p.d.q.
4
readily(adverb, quickly, effortlessly)
4
right(adverb, straight, immediately, promptly)
4
right now(expression, adverb, now, directly, immediately)
3
absence of difficulty
3
apace(quickly, rapidly, speedily)
3
hurriedly(adverb, quickly, rapidly, speedily)
3
in haste(expression, adverb, quickly, rapidly, speedily)
3
on the spot(expression, idiom, adverb, directly, immediately)
3
straight
3
straightway
3
this minute(expression, adverb, directly, immediately, rapidly)
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APASmart Define. (2015). without delay thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/without_delay/thesaurus/synonyms
ChicagoSmart Define. 2015. "without delay thesaurus" https://smartdefine.org/without_delay/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, without delay thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/without_delay/thesaurus/synonyms>.
MLASmart Define. "without delay thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/without_delay/thesaurus/synonyms>