Synonyms|578Antonyms|147|Broader|5Narrower|2Related|394
1
hairtrigger(hot, quick, rapid)
1
harefooted(adjective, prompt, fast, irritable, quick)
1
haste
1
having movement
1
hell-for-leather(adjective, informal, fast)
1
hovering(flying, soaring, floating, aerial, winged)
1
hurriedly
1
hurry
1
hustling
1
hypersonic(hot, quick, rapid)
1
immediately
1
immoral(adjective, evil, corrupt, wicked, degenerate)
1
impermanent
1
in a jiffy(expression, idiom, hot, quick, rapid)
1
inconstant
1
inquire
1
interim
1
invite
1
kaleidoscopic
1
last-minute
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APASmart Define. (2016). speedy thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/speedy/thesaurus/synonyms
ChicagoSmart Define. 2016. "speedy thesaurus" https://smartdefine.org/speedy/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, speedy thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/speedy/thesaurus/synonyms>.
MLASmart Define. "speedy thesaurus" 1 April 2016. Web. 25 September 2026. <https://smartdefine.org/speedy/thesaurus/synonyms>