10
deceitful
10
two-faced(adjective, vacillating)
8
double-dealing
8
duplicitous
5
ambidextrous
5
dishonest
5
double-faced
4
double-tongued
4
treacherous
3
hypocritical
3
insincere
2
artful
2
artificial
2
bipolar(adjective, vacillating)
2
crafty
2
crooked
2
cunning
2
designing
2
dissembling
2
evasive
13 years ago|3.9k views|share |citing 
APASmart Define. (2013). janus-faced thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/janus-faced/thesaurus/synonyms
ChicagoSmart Define. 2013. "janus-faced thesaurus" https://smartdefine.org/janus-faced/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, janus-faced thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/janus-faced/thesaurus/synonyms>.
MLASmart Define. "janus-faced thesaurus" 28 June 2013. Web. 20 September 2026. <https://smartdefine.org/janus-faced/thesaurus/synonyms>