Synonyms|261Antonyms|13|Broader|0Narrower|0Related|84

80 entries under fast topic. ×

1
animated(rapid, swift)
1
brisk(hot, quick, rapid, nimble)
1
cursory(adjective, rapid, swift)
1
curt(rapid, swift)
1
double time(expression, rapid, swift)
1
energetic(rapid, swift)
1
flying(hot, quick, nimble, speedy)
1
going(rapid, swift)
1
harefooted(rapid, swift)
1
hell-for-leather(adverb, informal)
1
hurried(verb, hot, quick, nimble)
1
immediate(adjective, quick, rapid, speedy)
1
in a flash(expression, idiom, adverb, quickly)
1
instantaneous(rapid, swift)
1
keen(adjective, rapid, swift)
1
lead out(expression, rapid, swift)
1
like a flash(expression, idiom, adverb, quickly)
1
like greased lightning(expression, idiom, adverb, quickly)
1
like wildfire(expression, idiom, adverb, quickly)
1
lively(rapid, swift)
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APASmart Define. (2015). posthaste thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/posthaste/thesaurus/synonyms
ChicagoSmart Define. 2015. "posthaste thesaurus" https://smartdefine.org/posthaste/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, posthaste thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/posthaste/thesaurus/synonyms>.
MLASmart Define. "posthaste thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/posthaste/thesaurus/synonyms>