1
in a second
1
in a timely fashion(adverb, time, early, timely, opportunely)
1
in a timely manner(adverb, time, early, timely, opportunely)
1
in a timely way(adverb, time, early, timely, opportunely)
1
in an instant(expression, idiom, first, now, directly)
1
in double-quick time(expression, idiom)
1
in double time(expression, idiom)
1
in due course(adverb, time, early, timely, opportunely)
1
in due time(adverb, time, early, timely, opportunely)
1
in good season(adverb, time, early, timely, opportunely)
1
in high
1
in high gear(expression, idiom)
1
in passing
1
in proper time(adverb, time, early, timely, opportunely)
1
in seven-league boots(expression, idiom)
1
in short order(expression, idiom, early, quickly, rapidly)
1
in two shakes
1
instant
1
instantaneous
1
intently(earnestly, heartily, readily, sincerely, enthusiastically)
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APASmart Define. (2016). promptly thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/promptly/thesaurus/synonyms
ChicagoSmart Define. 2016. "promptly thesaurus" https://smartdefine.org/promptly/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, promptly thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/promptly/thesaurus/synonyms>.
MLASmart Define. "promptly thesaurus" 21 March 2016. Web. 24 September 2026. <https://smartdefine.org/promptly/thesaurus/synonyms>