40 entries under adjective topic. ×

4
breakneck(adverb, hot, fast, quick)
3
headlong(adverb, fast, rapid, swift)
2
at once(expression, idiom, adverb, fast)
2
directly(adverb, fast)
2
lickety split(expression, adverb, hot, quick)
2
pell-mell(adverb, fast, carelessly, hurriedly)
2
straightaway(adverb, fast)
1
abrupt(fast, rapid, swift)
1
active(hot, fast, quick, nimble)
1
agile(hot, fast, quick, nimble)
1
alert(fast, rapid, swift)
1
cursory(fast, rapid, swift)
1
immediate(fast, quick, rapid, speedy)
1
keen(fast, rapid, swift)
1
nimble(hot, fast, quick, rapid)
1
prompt(fast, quick, rapid, speedy)
0
alive
0
bright
0
dexterous
0
instant
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APASmart Define. (2015). posthaste thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/posthaste/thesaurus/synonyms
ChicagoSmart Define. 2015. "posthaste thesaurus" https://smartdefine.org/posthaste/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, posthaste thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/posthaste/thesaurus/synonyms>.
MLASmart Define. "posthaste thesaurus" 13 April 2015. Web. 26 September 2026. <https://smartdefine.org/posthaste/thesaurus/synonyms>