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 20, 2026, from https://smartdefine.org/straightaway/thesaurus/synonyms
ChicagoSmart Define. 2015. "straightaway thesaurus" https://smartdefine.org/straightaway/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, straightaway thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/straightaway/thesaurus/synonyms>.
MLASmart Define. "straightaway thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/straightaway/thesaurus/synonyms>