3
sporadic(adjective, capricious, motiveless)
2
shadowy
2
short-range(adjective, temporary)
2
slapdash(adjective, present, short, limited, quick)
2
speedy(adjective, hot, quick, hasty, superficial)
2
sudden(adjective, quick, brief, immediate, instant)
2
transitional
2
wandering(adjective, motiveless)
2
whimsical(adjective, impulsive, unpredictable, capricious, explosive)
2
accelerated(adjective, hot, quick, rapid, speedy)
2
arbitrary(adjective, capricious, motiveless)
2
brash(adjective, quick, speedy, sudden, hurried)
2
briefly
2
brusque(adjective, sudden)
2
careless(adjective, quick, speedy, hasty, superficial)
2
casual(quick, hasty, superficial, transient, transitory)
2
chancy(adjective, motiveless)
2
convertible
2
dashing(adjective, hot, quick, rapid, nimble)
2
draft
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APASmart Define. (2016). fleeting thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/fleeting/thesaurus/synonyms
ChicagoSmart Define. 2016. "fleeting thesaurus" https://smartdefine.org/fleeting/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, fleeting thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/fleeting/thesaurus/synonyms>.
MLASmart Define. "fleeting thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/fleeting/thesaurus/synonyms>