529 entries under adjective topic. ×

16
untrue(continue, fake, false, dishonest)
16
unscrupulous(mean, hard, smooth, evil)
16
wicked(mean, bad, severe, rough)
15
dangerous(hard, severe, evil, rough)
15
two-faced(mean, wrong, base, false)
14
shifty(mean, smooth, wrong, smart)
14
cunning(mean, smooth, smart, false)
14
devious(mean, fake, base, false)
14
duplicitous(mean, fake, base, false)
14
precarious(delicate, uncertain, sensitive, unstable)
14
sly(false, dishonest, cunning, deceitful)
14
treasonous(fickle, untrustworthy, unprincipled, disloyal)
14
unsafe(delicate, uncertain, sensitive, dishonest)
13
undependable(false, dishonest, deceitful, unpredictable)
13
unstable(uncertain, dishonest, shaky, unpredictable)
13
wily(mean, smooth, smart, false)
12
fraudulent(fake, false, corrupt, dishonest)
12
insecure(unreliable, dangerous, incalculable)
12
insincere(false, dishonest, cunning, deceitful)
12
lying(false, corrupt, dishonest, cunning)
10 years ago|26k views|share |citing 
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>