2
fallacious
2
falsehearted(adjective, mean, bad, evil, base)
2
misleading
2
plotting
2
shady(adjective, dishonest, cunning, deceitful, dubious)
2
sharp
2
smooth
2
sneaking(dishonest, cunning, deceitful, ambiguous, crafty)
2
traitorous(adjective, mean, bad, evil, base)
2
unprincipled(dishonest, dubious, fickle, suspicious, untrustworthy)
2
unreliable
2
unscrupulous(adjective, mean, bad, base, dishonest)
1
ancillary(ambiguous, rambling, incidental, circuitous, tortuous)
1
apostate(adjective, mean, bad, evil, base)
1
artificial
1
bent
1
cagey
1
canting(adjective, mean, bad, base, false)
1
capricious
1
cheating(adjective, deceitful, lying, double, double-faced)
11 years ago|5.5k views|share |citing 
APASmart Define. (2015). duplicitous thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/duplicitous/thesaurus/synonyms
ChicagoSmart Define. 2015. "duplicitous thesaurus" https://smartdefine.org/duplicitous/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, duplicitous thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/duplicitous/thesaurus/synonyms>.
MLASmart Define. "duplicitous thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/duplicitous/thesaurus/synonyms>