529 entries under adjective topic. ×

3
disreputable(low, false, deceitful, lying)
3
dissimulating(wrong, false, dishonest, deceitful)
3
doubtful
3
fair-weather(dishonest, deceitful, unreliable, fickle)
3
fake(false, dishonest, deceitful, unpredictable)
3
flagrant
3
hollow(wrong, false, dishonest, unpredictable)
3
hostile(hard, evil, rough, nasty)
3
inflammatory
3
injurious(harmful, dangerous, detrimental)
3
insurgent
3
intriguing(mean, smooth, cunning, deceitful)
3
mischievous(mean, smooth, cunning, knowing)
3
parlous(safety, dangerous)
3
perjured(mean, bad, base, false)
3
prevaricating(wrong, false, dishonest, deceitful)
3
shameful(evil, nasty, low, cruel)
3
surreptitious(mean, smooth, dishonest, cunning)
3
troublesome(hard, severe, evil, rough)
3
ugly(bad, hard, severe, evil)
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APASmart Define. (2016). treacherous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/treacherous/thesaurus/synonyms
ChicagoSmart Define. 2016. "treacherous thesaurus" https://smartdefine.org/treacherous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, treacherous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/treacherous/thesaurus/synonyms>.
MLASmart Define. "treacherous thesaurus" 4 March 2016. Web. 29 September 2026. <https://smartdefine.org/treacherous/thesaurus/synonyms>