3
perjured(adjective, mean, bad, base, false)
3
prevaricating(adjective, wrong, false, dishonest, deceitful)
3
shameful(adjective, evil, nasty, low, cruel)
3
shifting
3
surreptitious(adjective, mean, smooth, dishonest, cunning)
3
troublesome(adjective, hard, severe, evil, rough)
3
ugly(adjective, bad, hard, severe, evil)
3
unassured(adjective, dishonest, deceitful, unpredictable, unreliable)
3
unctuous(adjective, false, deceitful, lying, untruthful)
3
unethical(adjective, low, dishonest, immoral, cunning)
3
unloyal(adjective, false, dishonest, dubious, unsound)
3
venomous(adjective, dangerous, malevolent)
3
venturesome(adjective, bad, delicate, heavy, uncertain)
2
adventurous(adjective, safety)
2
ambidextrous(deceitful, lying, double, duplicitous, double-faced)
2
atrocious
2
confusing
2
counterfeit(adjective, fake, false, dishonest, cunning)
2
deadly(adjective, tricky, dangerous, ethal, Ethal)
2
explosive(adjective, insecure, risky, dangerous, provocative)
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APASmart Define. (2016). treacherous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/treacherous/thesaurus/synonyms
ChicagoSmart Define. 2016. "treacherous thesaurus" https://smartdefine.org/treacherous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, treacherous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/treacherous/thesaurus/synonyms>.
MLASmart Define. "treacherous thesaurus" 4 March 2016. Web. 28 September 2026. <https://smartdefine.org/treacherous/thesaurus/synonyms>