18 entries under sudden topic. ×

6
speedy(adjective, prompt, lively, fast, quick)
1
abrupt(adjective, summary, rapid, unexpected, instant)
1
cracking(adjective, summary, abrupt, rapid, unexpected)
1
double-quick(adjective, summary, abrupt, showy, unexpected)
1
fleet-footed(adjective, summary, abrupt, showy, unexpected)
1
flying(adjective, summary, abrupt, rapid, unexpected)
1
like crazy(expression, adjective, summary, abrupt, showy)
1
like mad(expression, adjective, summary, abrupt, showy)
1
pronto(adjective, summary, abrupt, rapid, unexpected)
1
screaming(adjective, summary, abrupt, showy, unexpected)
1
shaking a leg(expression, adjective, idiom, abrupt, showy)
1
short(adjective, summary, abrupt, rapid, unexpected)
1
short-lived(adjective, summary, abrupt, rapid, unexpected)
1
spanking(adjective, summary, abrupt, rapid, unexpected)
1
speedball(adjective, summary, abrupt, showy, unexpected)
1
unexpected(adjective, summary, abrupt, rapid, instant)
1
very fast(expression, adjective, summary, abrupt, unexpected)
0
barrelling(adjective, quick, abrupt, showy, nimble)
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APASmart Define. (2015). alacritous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/alacritous/thesaurus/synonyms
ChicagoSmart Define. 2015. "alacritous thesaurus" https://smartdefine.org/alacritous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, alacritous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/alacritous/thesaurus/synonyms>.
MLASmart Define. "alacritous thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/alacritous/thesaurus/synonyms>