Synonyms|90Antonyms|2|Broader|0Narrower|0Related|93
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progressing(headlong, onward)
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progressive(headlong, onward)
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propulsive(headlong, onward)
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quick
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quickly
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rash
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somersaulting(adverb, headlong)
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speedy
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sudden
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thoughtless
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well-developed(headlong, onward)
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APASmart Define. (2015). headfirst thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/headfirst/thesaurus/synonyms
ChicagoSmart Define. 2015. "headfirst thesaurus" https://smartdefine.org/headfirst/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, headfirst thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/headfirst/thesaurus/synonyms>.
MLASmart Define. "headfirst thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/headfirst/thesaurus/synonyms>