547 entries under adjective topic. ×

6
short-lived(summary, rapid, instant, transient)
6
temporary(time, transient, transitory, short-lived)
6
timely(prompt, exact, responsive, flexible)
6
transient(time, transitory, short-lived)
6
unanticipated(violent, fast, immediate, unexpected)
6
unforeseen(violent, fast, abrupt, hasty)
6
urgent(prompt, fast, hasty, immediate)
6
whirlwind(fast, rapid, speedy, urgent)
6
wide-awake(sharp, bright, lively, alert)
5
crack(cool, smooth, smart, clean)
5
crafty(smart, cunning, shrewd, clever)
5
feverish
5
flashing(hot, rapid, speedy, sudden)
5
meteoric
5
nimble-witted(smart, bright, intelligent, clever)
5
nippy(fast, rapid, swift, urgent)
5
out of the blue
5
receptive(sharp, smart, bright, sharp-witted)
5
responsive(understanding, keen, sharp, smart)
5
running(easy, articulate, confident, hasty)
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APASmart Define. (2016). quick thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/quick/thesaurus/synonyms
ChicagoSmart Define. 2016. "quick thesaurus" https://smartdefine.org/quick/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, quick thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/quick/thesaurus/synonyms>.
MLASmart Define. "quick thesaurus" 1 April 2016. Web. 21 September 2026. <https://smartdefine.org/quick/thesaurus/synonyms>