50 entries under dubious topic. ×

30
tricky(adjective, keen, sharp, smart, delicate)
28
crafty(adjective, keen, sharp, smart, informal)
24
shifty(adjective, false, uncertain, dishonest, cunning)
24
cunning(adjective, keen, sharp, smart, false)
22
dishonest(adjective, bad, wrong, informal, false)
22
treacherous(adjective, informal, false, uncertain, dishonest)
22
wily(adjective, keen, sharp, smart, informal)
21
slimy(adjective, smooth, dishonest, deceitful)
20
devious(adjective, false, uncertain, negative, dishonest)
19
untrustworthy(adjective, false, uncertainty, uncertain, dishonest)
15
deceitful(adjective, false, dishonest, cunning, lying)
13
crooked(adjective, bad, wrong, false, dishonest)
12
sneaky(adjective, bad, wrong, false, uncertain)
11
underhand(adjective, bad, wrong, keen, sharp)
11
unstable(adjective, weak, smooth, delicate, uncertain)
10
elusive(adjective, false, uncertain, seek, dishonest)
10
shady(adjective, bad, wrong, false, dishonest)
8
duplicitous(adjective, uncertain, dishonest, cunning, deceitful)
8
variable(adjective, weak, informal, uncertain, doubtful)
7
fly-by-night(adjective, bad, wrong, informal, false)
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APASmart Define. (2016). slippery thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/slippery/thesaurus/synonyms
ChicagoSmart Define. 2016. "slippery thesaurus" https://smartdefine.org/slippery/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, slippery thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/slippery/thesaurus/synonyms>.
MLASmart Define. "slippery thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/slippery/thesaurus/synonyms>