40 entries under instantly topic. ×

8
directly(adverb, time, straight, immediately, quickly)
6
at once(expression, idiom, adverb, time, directly)
6
now(adverb, time, straight, directly, immediately)
6
right away(expression, adverb, time, directly, immediately)
5
forthwith(adverb, time, directly, immediately, quickly)
4
promptly(adverb, straight, directly, immediately, quickly)
3
anon(adverb, directly, immediately, quickly, rapidly)
3
without hesitation(expression, adverb, directly, immediately, rapidly)
2
instanter(adverb, directly, immediately, quickly, rapidly)
2
pronto(adverb, directly, immediately, quickly, rapidly)
2
shortly(adverb, straight, directly, immediately, quickly)
2
without delay(expression, adverb, directly, immediately, rapidly)
1
PDQ(directly, immediately, rapidly, shortly)
1
at short notice(expression, idiom, directly, rapidly)
1
away(directly, immediately, rapidly)
1
double-time(directly, immediately, rapidly, shortly)
1
hereupon(directly, immediately, rapidly, shortly)
1
in a New York minute(expression, idiom, directly, rapidly)
1
in a flash(expression, idiom, directly, rapidly)
1
in a jiffy(expression, idiom, directly, immediately, rapidly)
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APASmart Define. (2015). straight off thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/straight_off/thesaurus/synonyms
ChicagoSmart Define. 2015. "straight off thesaurus" https://smartdefine.org/straight_off/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, straight off thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/straight_off/thesaurus/synonyms>.
MLASmart Define. "straight off thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/straight_off/thesaurus/synonyms>