Synonyms|312Antonyms|44|Broader|0Narrower|0Related|432

104 entries under fast topic. ×

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quick as a bunny(adjective, idiom)
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spirited(rapid, swift)
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sprightly(rapid, swift)
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ultrasonic(prompt, quick)
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APASmart Define. (2016). breakneck thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/breakneck/thesaurus/synonyms
ChicagoSmart Define. 2016. "breakneck thesaurus" https://smartdefine.org/breakneck/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, breakneck thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/breakneck/thesaurus/synonyms>.
MLASmart Define. "breakneck thesaurus" 1 April 2016. Web. 27 September 2026. <https://smartdefine.org/breakneck/thesaurus/synonyms>