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

65 entries under rapid topic. ×

2
fleet(prompt, fast, quick, abrupt)
2
immediate(noun, adjective, prompt, fast, quick)
2
instantaneous(adjective, fast, summary, swift)
2
lively(prompt, fast, quick, swift)
2
mercurial(fast, swift)
2
nimble(prompt, fast, quick, summary)
2
unforeseen(violent, fast, quick, abrupt)
2
winged(prompt, fast, quick, summary)
1
ASAP(fast, swift)
1
alacritous(prompt, fast, quick, summary)
1
alert(fast, swift)
1
animated(adjective, strong, keen, difficult, intense)
1
brief(violent, fast, quick, speedy)
1
curt(adjective, keen, energetic, violent, active)
1
double time(expression, fast, swift)
1
energetic(fast, swift)
1
excessive(adjective, quick, speedy)
1
expeditive(fast, swift)
1
going(fast, swift)
1
harefooted(prompt, fast, quick, speedy)
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HarvardSmart Define 2015, headlong thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/headlong/thesaurus/synonyms>.
MLASmart Define. "headlong thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/headlong/thesaurus/synonyms>