17
immediately(adverb, time, first, now, directly)
14
directly(adverb, time, straight, first, now)
14
instantly(adverb, time, first, now, directly)
13
at once(expression, idiom, adverb, time, first)
13
right away(verb, expression, adverb, phrasal verb, time)
13
straight(noun, adjective, adverb, direct, right)
12
forthwith(adverb, time, directly, immediately)
12
now(adverb, time, directly, immediately, presently)
10
direct(adjective, adverb, straight, dead, directly)
10
promptly(adverb, first, now, directly, immediately)
10
quickly(adverb, straight, directly, immediately, hastily)
10
straight off(verb, expression, adverb, phrasal verb, time)
9
immediate
9
speedily(adverb, directly)
8
right(adjective, adverb, direct, straight, dead)
8
without delay(expression, idiom, adverb, first, directly)
7
right off(verb, expression, adverb, phrasal verb, time)
7
swiftly
6
pronto(adverb, directly)
5
instanter(adverb, directly)
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APASmart Define. (2015). straightaway thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/straightaway/thesaurus/synonyms
ChicagoSmart Define. 2015. "straightaway thesaurus" https://smartdefine.org/straightaway/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, straightaway thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/straightaway/thesaurus/synonyms>.
MLASmart Define. "straightaway thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/straightaway/thesaurus/synonyms>