12
misleading(adjective, wrong, false, dishonest, cunning)
12
recreant(adjective, mean, continue, base, false)
12
risky(adjective, bad, heavy, uncertain, safety)
12
scheming(adjective, mean, smooth, dishonest, deceitful)
11
artful(adjective, mean, smooth, dishonest, deceitful)
11
designing(adjective, mean, smooth, smart, false)
11
evil(adjective, mean, bad, hard, rough)
11
foxy(adjective, false, dishonest, deceitful, untrustworthy)
11
perilous(adjective, delicate, uncertain, unsound, risky)
11
shaky(adjective, unreliable, insecure, dangerous, incalculable)
11
sneaky(adjective, mean, smooth, smart, false)
11
treasonable(adjective, mean, base, false, dishonest)
10
hazardous(adjective, delicate, uncertain, unsound, risky)
10
villainous(adjective, mean, bad, evil, base)
9
dishonourable
9
fickle(adjective, false, unstable, dishonest, shaky)
9
nefarious(adjective, bad, corrupt, dishonest, immoral)
9
seditious(adjective, contrary, untrue, untrustworthy, naughty)
9
slick(adjective, mean, informal, false, dishonest)
9
subversive(adjective, untrue, untrustworthy, unfaithful, disloyal)
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APASmart Define. (2016). treacherous thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/treacherous/thesaurus/synonyms
ChicagoSmart Define. 2016. "treacherous thesaurus" https://smartdefine.org/treacherous/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, treacherous thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/treacherous/thesaurus/synonyms>.
MLASmart Define. "treacherous thesaurus" 4 March 2016. Web. 27 September 2026. <https://smartdefine.org/treacherous/thesaurus/synonyms>