Synonyms|674Antonyms|57|Broader|10Narrower|0Related|241

90 entries under quick topic. ×

2
fleet(prompt, fast, abrupt, rapid)
2
fleeting(adjective, speedy, sudden, hurried)
2
immediate(noun, adjective, prompt, fast)
2
indiscreet(adjective, violent, careless, fast)
2
lively(prompt, fast, rapid, swift)
2
nimble(prompt, fast, summary, rapid)
2
plunging(adjective, adverb, violent, fast)
2
spur-of-the-moment(noun, adjective, impulsive, rash)
2
unanticipated(violent, fast)
2
unexpected(passionate, violent, fast, fierce)
2
unforeseen(violent, fast, abrupt, rapid)
2
violent(adjective, strong, keen, difficult, intense)
2
winged(prompt, fast, summary, rapid)
2
without warning(expression, adjective, violent, fast)
1
alacritous(prompt, fast, summary, rapid)
1
brief(violent, fast, rapid, speedy)
1
excessive(adjective, rapid, speedy)
1
frantic(violent, anxious, fast, worried)
1
gone off half-cocked(expression, idiom, violent, fast)
1
harefooted(prompt, fast, rapid, speedy)
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ChicagoSmart Define. 2015. "headlong thesaurus" https://smartdefine.org/headlong/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, headlong thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/headlong/thesaurus/synonyms>.
MLASmart Define. "headlong thesaurus" 3 August 2015. Web. 22 September 2026. <https://smartdefine.org/headlong/thesaurus/synonyms>