2
ephemera
2
fanciful(adjective, capricious, motiveless)
2
irregular(adjective, motiveless)
2
overnight
2
quickly
2
random(adjective, capricious, motiveless)
2
rapid(adjective, hot, quick, speedy, hasty)
2
rash(adjective, quick, speedy, sudden, hurried)
2
reckless(adjective, quick, speedy, sudden, hurried)
2
rushed(adjective, quick, speedy, sudden, hurried)
2
smallish(adjective, little)
2
spastic(adjective, motiveless)
2
stopgap
2
summary
2
throwaway
2
transitive
2
unenduring(transient, short-lived)
2
unsubstantial
2
urgent(adjective, quick, speedy, sudden, hurried)
2
vacillating(adjective, capricious)
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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>