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

87 entries under fast topic. ×

1
jump the gun(expression, idiom, violent, quick)
1
keen(adjective, energetic, violent, active, anxious)
1
lead out(expression, rapid, swift)
1
lissome(prompt, quick)
1
move it(expression, rapid, swift)
1
move on(expression, rapid, swift)
1
on the double(expression, idiom, quick, summary)
1
perfunctory(quick, rapid, speedy, swift)
1
pronto(quick, summary, speedy, swift)
1
quick-fire(prompt, quick)
1
rapid-fire(prompt, quick)
1
ready(prompt, quick, summary, rapid)
1
refractory(violent, quick)
1
spirited(adjective, strong, keen, difficult, intense)
1
sprightly(rapid, swift)
1
spry(rapid, swift)
1
subitaneous(violent, fierce, quick, ardent)
1
summary(prompt, quick, rapid, instant)
1
supersonic(prompt, quick, summary, rapid)
1
ultrasonic(prompt, quick)
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ChicagoSmart Define. 2015. "headlong thesaurus" https://smartdefine.org/headlong/thesaurus/synonyms (accessed September 24, 2026).
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>