1
briefly
1
brisk
1
brittle
1
burst
1
chancy(uncertain, doubtful, unsure)
1
conniving(adjective, false, dishonest, deceitful, dubious)
1
convertible
1
corruptible
1
crooked(adjective, bad, wrong, false, dishonest)
1
dalliance
1
debatable(uncertain, doubtful, unsure)
1
deceitful(adjective, false, dishonest, dubious, unpredictable)
1
derelict(exile, outlaw, outcast)
1
devious(adjective, false, dishonest, deceitful, dubious)
1
dickey(adjective, unreliable, insecure, treacherous, incalculable)
1
dicky(adjective, unreliable, insecure, treacherous, incalculable)
1
diffident(uncertain, nervous, doubtful, insecure, unsure)
1
dillydallying(adjective, irresolute)
1
displaced person(expression, exile, outlaw, outcast)
1
disputable(uncertain, doubtful, unsure)
10 years ago|3.8k views|share |citing 
APASmart Define. (2016). fly-by-night thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/fly-by-night/thesaurus/synonyms
ChicagoSmart Define. 2016. "fly-by-night thesaurus" https://smartdefine.org/fly-by-night/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, fly-by-night thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/fly-by-night/thesaurus/synonyms>.
MLASmart Define. "fly-by-night thesaurus" 26 February 2016. Web. 28 September 2026. <https://smartdefine.org/fly-by-night/thesaurus/synonyms>