40 entries under instantly topic. ×

8
right away(expression, adverb, time, quick, now)
4
at once(expression, idiom, adverb, directly, immediately)
3
directly(adverb, immediately, rapidly)
3
instantaneously(adverb, directly, immediately, rapidly)
3
promptly(adverb, directly, immediately, rapidly)
3
summarily(adverb, delay, directly, immediately, rapidly)
3
without delay(expression, adverb, directly, immediately, rapidly)
2
forthwith(adverb, directly, immediately, rapidly)
2
instanter(adverb, directly, immediately, rapidly)
2
now(adverb, directly, immediately, rapidly)
2
on the dot(expression, idiom, adverb, directly, rapidly)
2
pronto(adverb, directly, immediately, rapidly)
2
straight away(expression, adverb, directly, rapidly)
1
anon(adverb, directly, immediately, rapidly)
1
at short notice(expression, adverb, directly, immediately, rapidly)
1
away(adverb, directly, immediately, rapidly)
1
double-time(adverb, directly, immediately, rapidly)
1
hereupon(adverb, directly, immediately, rapidly)
1
in a New York minute(expression, adverb, directly, rapidly)
1
in a flash(expression, adverb, directly, rapidly)
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APASmart Define. (2015). on the spot thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/on_the_spot/thesaurus/synonyms
ChicagoSmart Define. 2015. "on the spot thesaurus" https://smartdefine.org/on_the_spot/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, on the spot thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/on_the_spot/thesaurus/synonyms>.
MLASmart Define. "on the spot thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/on_the_spot/thesaurus/synonyms>