double-dealing
noun
• the practice of working to people's disadvantage behind their backs.
• "an air of double-dealing and deceit hangs over the negotiations"
Similar:
duplicity,
treachery,
betrayal,
double-crossing,
faithlessness,
unfaithfulness,
untrustworthiness,
infidelity,
bad faith,
disloyalty,
perfidy,
perfidiousness,
treason,
breach of trust,
fraud,
fraudulence,
underhandedness,
cheating,
dishonesty,
deceit,
deceitfulness,
deception,
falseness,
stab in the back,
back-stabbing,
lying,
mendacity,
trickery,
two-facedness,
crookedness,
two-timing,
Punic faith,
double-dealing
adjective
• working deceitfully to injure others.
• "she is a back-stabbing, double-dealing twister"