10
apace(adverb, fast, quickly, rapidly, pronto)
9
helter-skelter(adjective, adverb, confusion, confused, haste)
9
instantly(adverb, early, directly, immediately, quickly)
8
lickety-split
8
like a shot(expression, idiom, adverb, fast, quickly)
7
excitedly(intensely, fiercely, earnestly, keenly, wildly)
7
expeditiously(adverb, quick, early, quickly, earnestly)
7
half ass
7
incautiously(adverb, impulsively, rashly)
7
pell-mell(adverb, carelessly, hurriedly, hurried and confused)
7
posthaste(adjective, adverb, fast, quick, early)
7
precipitously(adverb, suddenly)
7
quick(adjective, early, quickly, rapidly, instantly)
7
soon(adverb, quickly, rapidly, speedily)
7
thoughtlessly(adverb, impulsively, rashly)
6
at once(expression, idiom, adverb, immediately, quickly)
6
carelessly
6
directly(adverb, fast, quickly, rapidly, pronto)
6
feverishly
6
fleetly(adverb, quick, early, immediately, quickly)
11 years ago|9.4k views|share |citing 
APASmart Define. (2015). hastily thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/hastily/thesaurus/synonyms
ChicagoSmart Define. 2015. "hastily thesaurus" https://smartdefine.org/hastily/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, hastily thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/hastily/thesaurus/synonyms>.
MLASmart Define. "hastily thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/hastily/thesaurus/synonyms>