Synonyms|744Antonyms|104|Broader|6Narrower|5Related|904
1
double-quick(summary, abrupt, rapid, unexpected, instant)
1
double time(expression, fast, rapid, swift)
1
drastic
1
dying to(expression, adjective, keen, violent, anxious)
1
eager(adjective, keen, violent, careless, anxious)
1
edgy(adjective, keen, violent, anxious, eager)
1
effective(affected, melodramatic, theatrical)
1
electricity
1
emergent
1
emotional(noun, passionate, violent, thoughtless, affected)
1
energetic(fast, rapid, swift)
1
exceptional
1
excite
1
expeditive(fast, rapid, swift, highpowered, chop-chop)
1
explosive
1
expressive(affected, melodramatic, theatrical)
1
farcical(affected, melodramatic, theatrical)
1
fast paced
1
feign
1
feverish(adjective, keen, violent, anxious, eager)
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ChicagoSmart Define. 2016. "sudden thesaurus" https://smartdefine.org/sudden/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2016, sudden thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/sudden/thesaurus/synonyms>.
MLASmart Define. "sudden thesaurus" 26 February 2016. Web. 22 September 2026. <https://smartdefine.org/sudden/thesaurus/synonyms>